56491536 has 40 divisors (see below), whose sum is σ = 150972480. Its totient is φ = 18180736.

The previous prime is 56491531. The next prime is 56491559. The reversal of 56491536 is 63519465.

It is a junction number, because it is equal to n+sod(n) for n = 56491494 and 56491503.

It is not an unprimeable number, because it can be changed into a prime (56491531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18900 + ... + 21683.

It is an arithmetic number, because the mean of its divisors is an integer number (3774312).

Almost surely, 2^56491536 is an apocalyptic number.

It is an amenable number.

56491536 is an abundant number, since it is smaller than the sum of its proper divisors (94480944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56491536 is a wasteful number, since it uses less digits than its factorization.

56491536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40623 (or 40617 counting only the distinct ones).

The product of its digits is 97200, while the sum is 39.

The square root of 56491536 is about 7516.0851511941. The cubic root of 56491536 is about 383.7023518102.

The spelling of 56491536 in words is "fifty-six million, four hundred ninety-one thousand, five hundred thirty-six".