56189907 has 24 divisors (see below), whose sum is σ = 84324240. Its totient is φ = 36012480.

The previous prime is 56189893. The next prime is 56189963. The reversal of 56189907 is 70998165.

56189907 is a `hidden beast` number, since 561 + 89 + 9 + 0 + 7 = 666.

It is not a de Polignac number, because 56189907 - 2⁶ = 56189843 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (56181907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120088 + ... + 120554.

It is an arithmetic number, because the mean of its divisors is an integer number (3513510).

Almost surely, 2^56189907 is an apocalyptic number.

56189907 is a deficient number, since it is larger than the sum of its proper divisors (28134333).

56189907 is a wasteful number, since it uses less digits than its factorization.

56189907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963 (or 960 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 56189907 is about 7495.9927294522. The cubic root of 56189907 is about 383.0182236305.

The spelling of 56189907 in words is "fifty-six million, one hundred eighty-nine thousand, nine hundred seven".