56678251 has 6 divisors (see below), whose sum is σ = 65931900. Its totient is φ = 48581316.

The previous prime is 56678243. The next prime is 56678299. The reversal of 56678251 is 15287665.

It is not a de Polignac number, because 56678251 - 2³ = 56678243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56678231) 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, 578301 + ... + 578398.

It is an arithmetic number, because the mean of its divisors is an integer number (10988650).

Almost surely, 2^56678251 is an apocalyptic number.

56678251 is a deficient number, since it is larger than the sum of its proper divisors (9253649).

56678251 is a wasteful number, since it uses less digits than its factorization.

56678251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156713 (or 1156706 counting only the distinct ones).

The product of its digits is 100800, while the sum is 40.

The square root of 56678251 is about 7528.4959321235. The cubic root of 56678251 is about 384.1246227271.

The spelling of 56678251 in words is "fifty-six million, six hundred seventy-eight thousand, two hundred fifty-one".