57252605205527 has 4 divisors (see below), whose sum is σ = 57276999159816. Its totient is φ = 57228211251240.

The previous prime is 57252605205493. The next prime is 57252605205539. The reversal of 57252605205527 is 72550250625275.

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

It is a cyclic number.

It is not a de Polignac number, because 57252605205527 - 2²² = 57252601011223 is a prime.

It is a super-3 number, since 3×57252605205527³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57252605205427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12196973624 + ... + 12196978317.

It is an arithmetic number, because the mean of its divisors is an integer number (14319249789954).

Almost surely, 2^{57252605205527} is an apocalyptic number.

57252605205527 is a deficient number, since it is larger than the sum of its proper divisors (24393954289).

57252605205527 is a wasteful number, since it uses less digits than its factorization.

57252605205527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24393954288.

The product of its (nonzero) digits is 14700000, while the sum is 53.

The spelling of 57252605205527 in words is "fifty-seven trillion, two hundred fifty-two billion, six hundred five million, two hundred five thousand, five hundred twenty-seven".