56971901 has 8 divisors (see below), whose sum is σ = 66003264. Its totient is φ = 48163680.

The previous prime is 56971867. The next prime is 56971931. The reversal of 56971901 is 10917965.

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 56971901 - 2²² = 52777597 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56971931) 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, 55235 + ... + 56256.

It is an arithmetic number, because the mean of its divisors is an integer number (8250408).

Almost surely, 2^56971901 is an apocalyptic number.

It is an amenable number.

56971901 is a deficient number, since it is larger than the sum of its proper divisors (9031363).

56971901 is a wasteful number, since it uses less digits than its factorization.

56971901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111571.

The product of its (nonzero) digits is 17010, while the sum is 38.

The square root of 56971901 is about 7547.9733041393. The cubic root of 56971901 is about 384.7868635325.

The spelling of 56971901 in words is "fifty-six million, nine hundred seventy-one thousand, nine hundred one".