56809946 has 16 divisors (see below), whose sum is σ = 86702400. Its totient is φ = 27913248.

The previous prime is 56809939. The next prime is 56809997. The reversal of 56809946 is 64990865.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56809946.

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, 30971 + ... + 32753.

It is an arithmetic number, because the mean of its divisors is an integer number (5418900).

Almost surely, 2^56809946 is an apocalyptic number.

56809946 is a deficient number, since it is larger than the sum of its proper divisors (29892454).

56809946 is a wasteful number, since it uses less digits than its factorization.

56809946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053.

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 56809946 is about 7537.2372922710. The cubic root of 56809946 is about 384.4219040830.

The spelling of 56809946 in words is "fifty-six million, eight hundred nine thousand, nine hundred forty-six".