52978765 has 16 divisors (see below), whose sum is σ = 74430720. Its totient is φ = 35441280.

The previous prime is 52978753. The next prime is 52978769. The reversal of 52978765 is 56787925.

It is not a de Polignac number, because 52978765 - 2⁵ = 52978733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52978769) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 17025 + ... + 19894.

It is an arithmetic number, because the mean of its divisors is an integer number (4651920).

Almost surely, 2^52978765 is an apocalyptic number.

It is an amenable number.

52978765 is a deficient number, since it is larger than the sum of its proper divisors (21451955).

52978765 is a wasteful number, since it uses less digits than its factorization.

52978765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36972.

The product of its digits is 1058400, while the sum is 49.

The square root of 52978765 is about 7278.6513173802. The cubic root of 52978765 is about 375.5784022251.

The spelling of 52978765 in words is "fifty-two million, nine hundred seventy-eight thousand, seven hundred sixty-five".