55838454 has 64 divisors (see below), whose sum is σ = 135475200. Its totient is φ = 14987808.

The previous prime is 55838443. The next prime is 55838459. The reversal of 55838454 is 45483855.

55838454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55838454² = 6235865890220232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55838459) 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 31 ways as a sum of consecutive naturals, for example, 133057 + ... + 133475.

It is an arithmetic number, because the mean of its divisors is an integer number (2116800).

Almost surely, 2^55838454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55838454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67737600).

55838454 is an abundant number, since it is smaller than the sum of its proper divisors (79636746).

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

55838454 is a wasteful number, since it uses less digits than its factorization.

55838454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617.

The product of its digits is 384000, while the sum is 42.

The square root of 55838454 is about 7472.5132318384. The cubic root of 55838454 is about 382.2179936823.

The spelling of 55838454 in words is "fifty-five million, eight hundred thirty-eight thousand, four hundred fifty-four".