52685278 has 12 divisors (see below), whose sum is σ = 83950992. Its totient is φ = 24792800.

The previous prime is 52685267. The next prime is 52685279. The reversal of 52685278 is 87258625.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52685279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44998 + ... + 46153.

It is an arithmetic number, because the mean of its divisors is an integer number (6995916).

Almost surely, 2^52685278 is an apocalyptic number.

52685278 is a deficient number, since it is larger than the sum of its proper divisors (31265714).

52685278 is a wasteful number, since it uses less digits than its factorization.

52685278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91187 (or 91170 counting only the distinct ones).

The product of its digits is 268800, while the sum is 43.

The square root of 52685278 is about 7258.4625093748. The cubic root of 52685278 is about 374.8835857903.

The spelling of 52685278 in words is "fifty-two million, six hundred eighty-five thousand, two hundred seventy-eight".