52597557 has 12 divisors (see below), whose sum is σ = 77741664. Its totient is φ = 34249320.

The previous prime is 52597549. The next prime is 52597583. The reversal of 52597557 is 75579525.

52597557 is a `hidden beast` number, since 5 + 2 + 5 + 97 + 557 = 666.

It is not a de Polignac number, because 52597557 - 2³ = 52597549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52597537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67569 + ... + 68342.

It is an arithmetic number, because the mean of its divisors is an integer number (6478472).

Almost surely, 2^52597557 is an apocalyptic number.

It is an amenable number.

52597557 is a deficient number, since it is larger than the sum of its proper divisors (25144107).

52597557 is a wasteful number, since it uses less digits than its factorization.

52597557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135960 (or 135957 counting only the distinct ones).

The product of its digits is 551250, while the sum is 45.

The square root of 52597557 is about 7252.4173211420. The cubic root of 52597557 is about 374.6754097909.

The spelling of 52597557 in words is "fifty-two million, five hundred ninety-seven thousand, five hundred fifty-seven".