57204155502 has 80 divisors (see below), whose sum is σ = 138590896752. Its totient is φ = 17530992000.

The previous prime is 57204155473. The next prime is 57204155507. The reversal of 57204155502 is 20555140275.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57204155507) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 474498 + ... + 582714.

Almost surely, 2^57204155502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57204155502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69295448376).

57204155502 is an abundant number, since it is smaller than the sum of its proper divisors (81386741250).

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

57204155502 is a wasteful number, since it uses less digits than its factorization.

57204155502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108495 (or 108486 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 36.

Adding to 57204155502 its reverse (20555140275), we get a palindrome (77759295777).

The spelling of 57204155502 in words is "fifty-seven billion, two hundred four million, one hundred fifty-five thousand, five hundred two".