56764161 has 12 divisors (see below), whose sum is σ = 85557888. Its totient is φ = 36197304.

The previous prime is 56764151. The next prime is 56764163. The reversal of 56764161 is 16146765.

56764161 is a `hidden beast` number, since 5 + 6 + 7 + 641 + 6 + 1 = 666.

It is not a de Polignac number, because 56764161 - 2⁷ = 56764033 is a prime.

It is a super-3 number, since 3×56764161³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56764163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136905 + ... + 137318.

It is an arithmetic number, because the mean of its divisors is an integer number (7129824).

Almost surely, 2^56764161 is an apocalyptic number.

It is an amenable number.

56764161 is a deficient number, since it is larger than the sum of its proper divisors (28793727).

56764161 is a wasteful number, since it uses less digits than its factorization.

56764161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274252 (or 274249 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 56764161 is about 7534.1994266146. The cubic root of 56764161 is about 384.3186035838.

The spelling of 56764161 in words is "fifty-six million, seven hundred sixty-four thousand, one hundred sixty-one".