52156605 has 32 divisors (see below), whose sum is σ = 85929984. Its totient is φ = 27000896.

The previous prime is 52156591. The next prime is 52156613. The reversal of 52156605 is 50665125.

It is a cyclic number.

It is not a de Polignac number, because 52156605 - 2⁴ = 52156589 is a prime.

It is a super-2 number, since 2×52156605² = 5440622890252050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117514 + ... + 117956.

It is an arithmetic number, because the mean of its divisors is an integer number (2685312).

Almost surely, 2^52156605 is an apocalyptic number.

It is an amenable number.

52156605 is a deficient number, since it is larger than the sum of its proper divisors (33773379).

52156605 is a wasteful number, since it uses less digits than its factorization.

52156605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 52156605 is about 7221.9529907083. The cubic root of 52156605 is about 373.6254388181.

The spelling of 52156605 in words is "fifty-two million, one hundred fifty-six thousand, six hundred five".