57506252522 has 4 divisors (see below), whose sum is σ = 86259378786. Its totient is φ = 28753126260.

The previous prime is 57506252521. The next prime is 57506252539. The reversal of 57506252522 is 22525260575.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 57011590441 + 494662081 = 238771^2 + 22241^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 57506252522.

It is not an unprimeable number, because it can be changed into a prime (57506252521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14376563129 + ... + 14376563132.

Almost surely, 2^57506252522 is an apocalyptic number.

57506252522 is a deficient number, since it is larger than the sum of its proper divisors (28753126264).

57506252522 is a wasteful number, since it uses less digits than its factorization.

57506252522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28753126263.

The product of its (nonzero) digits is 420000, while the sum is 41.

The spelling of 57506252522 in words is "fifty-seven billion, five hundred six million, two hundred fifty-two thousand, five hundred twenty-two".