57102638 has 16 divisors (see below), whose sum is σ = 90858240. Its totient is φ = 26839800.

The previous prime is 57102637. The next prime is 57102691. The reversal of 57102638 is 83620175.

It is a happy number.

It is a super-2 number, since 2×57102638² = 6521422533118088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57102637) 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, 758 + ... + 10713.

It is an arithmetic number, because the mean of its divisors is an integer number (5678640).

Almost surely, 2^57102638 is an apocalyptic number.

57102638 is a deficient number, since it is larger than the sum of its proper divisors (33755602).

57102638 is a wasteful number, since it uses less digits than its factorization.

57102638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11623.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 57102638 is about 7556.6287456775. The cubic root of 57102638 is about 385.0809702077.

The spelling of 57102638 in words is "fifty-seven million, one hundred two thousand, six hundred thirty-eight".