56489913 has 16 divisors (see below), whose sum is σ = 83995840. Its totient is φ = 37521792.

The previous prime is 56489903. The next prime is 56489933. The reversal of 56489913 is 31998465.

It is a happy number.

56489913 is a `hidden beast` number, since 564 + 89 + 9 + 1 + 3 = 666.

It is not a de Polignac number, because 56489913 - 2²⁵ = 22935481 is a prime.

It is a super-2 number, since 2×56489913² = 6382220541495138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56489903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3945 + ... + 11337.

It is an arithmetic number, because the mean of its divisors is an integer number (5249740).

Almost surely, 2^56489913 is an apocalyptic number.

It is an amenable number.

56489913 is a deficient number, since it is larger than the sum of its proper divisors (27505927).

56489913 is a wasteful number, since it uses less digits than its factorization.

56489913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7685 (or 7679 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 56489913 is about 7515.9771819771. The cubic root of 56489913 is about 383.6986771896.

The spelling of 56489913 in words is "fifty-six million, four hundred eighty-nine thousand, nine hundred thirteen".