55525938 has 32 divisors (see below), whose sum is σ = 120730176. Its totient is φ = 16922688.

The previous prime is 55525909. The next prime is 55525973. The reversal of 55525938 is 83952555.

It is a self number, because there is not a number n which added to its sum of digits gives 55525938.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5020 + ... + 11672.

It is an arithmetic number, because the mean of its divisors is an integer number (3772818).

Almost surely, 2^55525938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55525938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60365088).

55525938 is an abundant number, since it is smaller than the sum of its proper divisors (65204238).

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

55525938 is a wasteful number, since it uses less digits than its factorization.

55525938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6778.

The product of its digits is 270000, while the sum is 42.

The square root of 55525938 is about 7451.5728541027. The cubic root of 55525938 is about 381.5035948558.

The spelling of 55525938 in words is "fifty-five million, five hundred twenty-five thousand, nine hundred thirty-eight".