55219758 has 16 divisors (see below), whose sum is σ = 120479616. Its totient is φ = 16733240.

The previous prime is 55219751. The next prime is 55219763. The reversal of 55219758 is 85791255.

55219758 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55219751) 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 7 ways as a sum of consecutive naturals, for example, 418266 + ... + 418397.

It is an arithmetic number, because the mean of its divisors is an integer number (7529976).

Almost surely, 2^55219758 is an apocalyptic number.

55219758 is an abundant number, since it is smaller than the sum of its proper divisors (65259858).

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

55219758 is a wasteful number, since it uses less digits than its factorization.

55219758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836679.

The product of its digits is 126000, while the sum is 42.

The square root of 55219758 is about 7430.9997981429. Note that the first 3 decimals coincide. The cubic root of 55219758 is about 380.8010755375.

It can be divided in two parts, 552197 and 58, that added together give a palindrome (552255).

The spelling of 55219758 in words is "fifty-five million, two hundred nineteen thousand, seven hundred fifty-eight".