56318730 has 32 divisors (see below), whose sum is σ = 145563264. Its totient is φ = 13862976.

The previous prime is 56318729. The next prime is 56318741. The reversal of 56318730 is 3781365.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 56318691 and 56318700.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71814 + ... + 72593.

It is an arithmetic number, because the mean of its divisors is an integer number (4548852).

Almost surely, 2^56318730 is an apocalyptic number.

56318730 is an abundant number, since it is smaller than the sum of its proper divisors (89244534).

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

56318730 is a wasteful number, since it uses less digits than its factorization.

56318730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144430.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 56318730 is about 7504.5806012062. The cubic root of 56318730 is about 383.3107073392.

The spelling of 56318730 in words is "fifty-six million, three hundred eighteen thousand, seven hundred thirty".