55514420 has 48 divisors (see below), whose sum is σ = 126478800. Its totient is φ = 20345856.

The previous prime is 55514411. The next prime is 55514429. The reversal of 55514420 is 2441555.

55514420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55514411) and next prime (55514429).

It can be written as a sum of positive squares in 8 ways, for example, as 4990756 + 50523664 = 2234^2 + 7108^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 55514420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55514429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38024 + ... + 39456.

It is an arithmetic number, because the mean of its divisors is an integer number (2634975).

Almost surely, 2^55514420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55514420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63239400).

55514420 is an abundant number, since it is smaller than the sum of its proper divisors (70964380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55514420 is a wasteful number, since it uses less digits than its factorization.

55514420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604 (or 1602 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 55514420 is about 7450.7999570516. The cubic root of 55514420 is about 381.4772140181.

Adding to 55514420 its reverse (2441555), we get a palindrome (57955975).

The spelling of 55514420 in words is "fifty-five million, five hundred fourteen thousand, four hundred twenty".