56845905 has 16 divisors (see below), whose sum is σ = 91126464. Its totient is φ = 30260160.

The previous prime is 56845879. The next prime is 56845933. The reversal of 56845905 is 50954865.

56845905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56845905 - 2¹⁵ = 56813137 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5247 + ... + 11883.

It is an arithmetic number, because the mean of its divisors is an integer number (5695404).

Almost surely, 2^56845905 is an apocalyptic number.

It is an amenable number.

56845905 is a deficient number, since it is larger than the sum of its proper divisors (34280559).

56845905 is a wasteful number, since it uses less digits than its factorization.

56845905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7216.

The product of its (nonzero) digits is 216000, while the sum is 42.

The square root of 56845905 is about 7539.6223380220. The cubic root of 56845905 is about 384.5029961724.

The spelling of 56845905 in words is "fifty-six million, eight hundred forty-five thousand, nine hundred five".