56909061 has 40 divisors (see below), whose sum is σ = 96807744. Its totient is φ = 32978880.

The previous prime is 56909059. The next prime is 56909077. The reversal of 56909061 is 16090965.

56909061 is a `hidden beast` number, since 569 + 0 + 90 + 6 + 1 = 666.

It is not a de Polignac number, because 56909061 - 2¹ = 56909059 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56909011) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 19105 + ... + 21881.

Almost surely, 2^56909061 is an apocalyptic number.

It is an amenable number.

56909061 is a deficient number, since it is larger than the sum of its proper divisors (39898683).

56909061 is a wasteful number, since it uses less digits than its factorization.

56909061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2823 (or 2814 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 56909061 is about 7543.8094488130. The cubic root of 56909061 is about 384.6453381974.

The spelling of 56909061 in words is "fifty-six million, nine hundred nine thousand, sixty-one".