52156557 has 12 divisors (see below), whose sum is σ = 75538944. Its totient is φ = 34677960.

The previous prime is 52156547. The next prime is 52156579. The reversal of 52156557 is 75565125.

It is a happy number.

52156557 is a `hidden beast` number, since 52 + 1 + 56 + 557 = 666.

It is not a de Polignac number, because 52156557 - 2⁴ = 52156541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52156547) 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, 4119 + ... + 11012.

It is an arithmetic number, because the mean of its divisors is an integer number (6294912).

Almost surely, 2^52156557 is an apocalyptic number.

It is an amenable number.

52156557 is a deficient number, since it is larger than the sum of its proper divisors (23382387).

52156557 is a wasteful number, since it uses less digits than its factorization.

52156557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15520 (or 15517 counting only the distinct ones).

The product of its digits is 52500, while the sum is 36.

The square root of 52156557 is about 7221.9496675067. The cubic root of 52156557 is about 373.6253242015.

The spelling of 52156557 in words is "fifty-two million, one hundred fifty-six thousand, five hundred fifty-seven".