56945511 has 40 divisors (see below), whose sum is σ = 98736000. Its totient is φ = 32033232.

The previous prime is 56945509. The next prime is 56945521. The reversal of 56945511 is 11554965.

56945511 is a `hidden beast` number, since 56 + 94 + 5 + 511 = 666.

It is not a de Polignac number, because 56945511 - 2¹ = 56945509 is a prime.

It is a super-2 number, since 2×56945511² = 6485582446102242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56945521) 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, 37240 + ... + 38738.

It is an arithmetic number, because the mean of its divisors is an integer number (2468400).

Almost surely, 2^56945511 is an apocalyptic number.

56945511 is a deficient number, since it is larger than the sum of its proper divisors (41790489).

56945511 is a wasteful number, since it uses less digits than its factorization.

56945511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585 (or 1576 counting only the distinct ones).

The product of its digits is 27000, while the sum is 36.

The square root of 56945511 is about 7546.2249502649. The cubic root of 56945511 is about 384.7274418793.

The spelling of 56945511 in words is "fifty-six million, nine hundred forty-five thousand, five hundred eleven".