52866765 has 48 divisors (see below), whose sum is σ = 109294848. Its totient is φ = 23113728.

The previous prime is 52866757. The next prime is 52866769. The reversal of 52866765 is 56766825.

52866765 is a `hidden beast` number, since 528 + 6 + 67 + 65 = 666.

It is not a de Polignac number, because 52866765 - 2³ = 52866757 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 52866765.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52866769) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3597 + ... + 10893.

It is an arithmetic number, because the mean of its divisors is an integer number (2276976).

Almost surely, 2^52866765 is an apocalyptic number.

It is an amenable number.

52866765 is an abundant number, since it is smaller than the sum of its proper divisors (56428083).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52866765 is a wasteful number, since it uses less digits than its factorization.

52866765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7338 (or 7335 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 52866765 is about 7270.9535138110. The cubic root of 52866765 is about 375.3135510888.

The spelling of 52866765 in words is "fifty-two million, eight hundred sixty-six thousand, seven hundred sixty-five".