52978864 has 10 divisors (see below), whose sum is σ = 102646580. Its totient is φ = 26489424.

The previous prime is 52978819. The next prime is 52978879. The reversal of 52978864 is 46887925.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1655574 + ... + 1655605.

It is an arithmetic number, because the mean of its divisors is an integer number (10264658).

Almost surely, 2^52978864 is an apocalyptic number.

It is an amenable number.

52978864 is a deficient number, since it is larger than the sum of its proper divisors (49667716).

52978864 is a wasteful number, since it uses less digits than its factorization.

52978864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3311187 (or 3311181 counting only the distinct ones).

The product of its digits is 967680, while the sum is 49.

The square root of 52978864 is about 7278.6581180874. The cubic root of 52978864 is about 375.5786361694.

It can be divided in two parts, 5297 and 8864, that added together give a square (14161 = 119²).

The spelling of 52978864 in words is "fifty-two million, nine hundred seventy-eight thousand, eight hundred sixty-four".