56704761 has 6 divisors (see below), whose sum is σ = 81906890. Its totient is φ = 37803168.

The previous prime is 56704727. The next prime is 56704777. The reversal of 56704761 is 16740765.

It can be written as a sum of positive squares in only one way, i.e., 52925625 + 3779136 = 7275^2 + 1944^2 .

It is not a de Polignac number, because 56704761 - 2¹⁰ = 56703737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56704261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3150256 + ... + 3150273.

Almost surely, 2^56704761 is an apocalyptic number.

It is an amenable number.

56704761 is a deficient number, since it is larger than the sum of its proper divisors (25202129).

56704761 is a wasteful number, since it uses less digits than its factorization.

56704761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6300535 (or 6300532 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 56704761 is about 7530.2563701377. The cubic root of 56704761 is about 384.1845019950.

The spelling of 56704761 in words is "fifty-six million, seven hundred four thousand, seven hundred sixty-one".