56623970 has 16 divisors (see below), whose sum is σ = 109763640. Its totient is φ = 20907264.

The previous prime is 56623967. The next prime is 56623997. The reversal of 56623970 is 7932665.

It can be written as a sum of positive squares in 4 ways, for example, as 38925121 + 17698849 = 6239^2 + 4207^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217655 + ... + 217914.

Almost surely, 2^56623970 is an apocalyptic number.

56623970 is a deficient number, since it is larger than the sum of its proper divisors (53139670).

56623970 is a wasteful number, since it uses less digits than its factorization.

56623970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435589.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 56623970 is about 7524.8900324191. The cubic root of 56623970 is about 384.0019576361.

The spelling of 56623970 in words is "fifty-six million, six hundred twenty-three thousand, nine hundred seventy".