56905930 has 8 divisors (see below), whose sum is σ = 102430692. Its totient is φ = 22762368.

The previous prime is 56905921. The next prime is 56905993. The reversal of 56905930 is 3950965.

It can be written as a sum of positive squares in 2 ways, for example, as 53978409 + 2927521 = 7347^2 + 1711^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 56905930.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2845287 + ... + 2845306.

Almost surely, 2^56905930 is an apocalyptic number.

56905930 is a deficient number, since it is larger than the sum of its proper divisors (45524762).

56905930 is a wasteful number, since it uses less digits than its factorization.

56905930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5690600.

The product of its (nonzero) digits is 36450, while the sum is 37.

The square root of 56905930 is about 7543.6019248102. The cubic root of 56905930 is about 384.6382839802.

The spelling of 56905930 in words is "fifty-six million, nine hundred five thousand, nine hundred thirty".