55739238 has 16 divisors (see below), whose sum is σ = 113306736. Its totient is φ = 18275040.

The previous prime is 55739153. The next prime is 55739249. The reversal of 55739238 is 83293755.

It is a self number, because there is not a number n which added to its sum of digits gives 55739238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75781 + ... + 76512.

It is an arithmetic number, because the mean of its divisors is an integer number (7081671).

Almost surely, 2^55739238 is an apocalyptic number.

55739238 is an abundant number, since it is smaller than the sum of its proper divisors (57567498).

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

55739238 is a wasteful number, since it uses less digits than its factorization.

55739238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152359.

The product of its digits is 226800, while the sum is 42.

The square root of 55739238 is about 7465.8715499264. The cubic root of 55739238 is about 381.9914793929.

The spelling of 55739238 in words is "fifty-five million, seven hundred thirty-nine thousand, two hundred thirty-eight".