57652638 has 16 divisors (see below), whose sum is σ = 119281680. Its totient is φ = 18554816.

The previous prime is 57652633. The next prime is 57652657. The reversal of 57652638 is 83625675.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57652638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57652633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165495 + ... + 165842.

It is an arithmetic number, because the mean of its divisors is an integer number (7455105).

Almost surely, 2^57652638 is an apocalyptic number.

57652638 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

57652638 is an abundant number, since it is smaller than the sum of its proper divisors (61629042).

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

57652638 is a wasteful number, since it uses less digits than its factorization.

57652638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331371.

The product of its digits is 302400, while the sum is 42.

The square root of 57652638 is about 7592.9334252316. The cubic root of 57652638 is about 386.3133602241.

The spelling of 57652638 in words is "fifty-seven million, six hundred fifty-two thousand, six hundred thirty-eight".