52664751 has 24 divisors (see below), whose sum is σ = 80720640. Its totient is φ = 32994000.

The previous prime is 52664749. The next prime is 52664761. The reversal of 52664751 is 15746625.

It is a happy number.

52664751 is a `hidden beast` number, since 5 + 2 + 6 + 647 + 5 + 1 = 666.

It is not a de Polignac number, because 52664751 - 2¹ = 52664749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52664701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21226 + ... + 23576.

It is an arithmetic number, because the mean of its divisors is an integer number (3363360).

Almost surely, 2^52664751 is an apocalyptic number.

52664751 is a deficient number, since it is larger than the sum of its proper divisors (28055889).

52664751 is a wasteful number, since it uses less digits than its factorization.

52664751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2507 (or 2504 counting only the distinct ones).

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

The square root of 52664751 is about 7257.0483669327. The cubic root of 52664751 is about 374.8348926495.

The spelling of 52664751 in words is "fifty-two million, six hundred sixty-four thousand, seven hundred fifty-one".