56904905 has 8 divisors (see below), whose sum is σ = 71880000. Its totient is φ = 43127856.

The previous prime is 56904901. The next prime is 56904929. The reversal of 56904905 is 50940965.

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

It is a cyclic number.

It is not a de Polignac number, because 56904905 - 2² = 56904901 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56904901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299405 + ... + 299594.

It is an arithmetic number, because the mean of its divisors is an integer number (8985000).

Almost surely, 2^56904905 is an apocalyptic number.

It is an amenable number.

56904905 is a deficient number, since it is larger than the sum of its proper divisors (14975095).

56904905 is a wasteful number, since it uses less digits than its factorization.

56904905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599023.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 56904905 is about 7543.5339861367. The cubic root of 56904905 is about 384.6359745746.

The spelling of 56904905 in words is "fifty-six million, nine hundred four thousand, nine hundred five".