52205931 has 16 divisors (see below), whose sum is σ = 78499200. Its totient is φ = 34283304.

The previous prime is 52205903. The next prime is 52205957. The reversal of 52205931 is 13950225.

52205931 is a `hidden beast` number, since 52 + 20 + 593 + 1 = 666.

It is not a de Polignac number, because 52205931 - 2⁵ = 52205899 is a prime.

It is a super-2 number, since 2×52205931² = 5450918463153522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 52205895 and 52205904.

It is not an unprimeable number, because it can be changed into a prime (52205971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12621 + ... + 16238.

It is an arithmetic number, because the mean of its divisors is an integer number (4906200).

Almost surely, 2^52205931 is an apocalyptic number.

52205931 is a deficient number, since it is larger than the sum of its proper divisors (26293269).

52205931 is a wasteful number, since it uses less digits than its factorization.

52205931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28935 (or 28929 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 52205931 is about 7225.3671879012. The cubic root of 52205931 is about 373.7431844784.

The spelling of 52205931 in words is "fifty-two million, two hundred five thousand, nine hundred thirty-one".