52716645 has 24 divisors (see below), whose sum is σ = 91948896. Its totient is φ = 27939168.

The previous prime is 52716623. The next prime is 52716661. The reversal of 52716645 is 54661725.

It is a happy number.

52716645 is a `hidden beast` number, since 5 + 2 + 7 + 1 + 6 + 645 = 666.

It is not a de Polignac number, because 52716645 - 2⁵ = 52716613 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3742 + ... + 10928.

It is an arithmetic number, because the mean of its divisors is an integer number (3831204).

Almost surely, 2^52716645 is an apocalyptic number.

It is an amenable number.

52716645 is a deficient number, since it is larger than the sum of its proper divisors (39232251).

52716645 is a wasteful number, since it uses less digits than its factorization.

52716645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7361 (or 7358 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 52716645 is about 7260.6229071616. The cubic root of 52716645 is about 374.9579686225.

It can be divided in two parts, 52716 and 645, that added together give a square (53361 = 231²).

The spelling of 52716645 in words is "fifty-two million, seven hundred sixteen thousand, six hundred forty-five".