56457132 has 48 divisors (see below), whose sum is σ = 139493760. Its totient is φ = 17722368.

The previous prime is 56457127. The next prime is 56457139. The reversal of 56457132 is 23175465.

It is a junction number, because it is equal to n+sod(n) for n = 56457093 and 56457102.

It is not an unprimeable number, because it can be changed into a prime (56457139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43363 + ... + 44645.

It is an arithmetic number, because the mean of its divisors is an integer number (2906120).

Almost surely, 2^56457132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56457132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69746880).

56457132 is an abundant number, since it is smaller than the sum of its proper divisors (83036628).

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

56457132 is a wasteful number, since it uses less digits than its factorization.

56457132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502 (or 1500 counting only the distinct ones).

The product of its digits is 25200, while the sum is 33.

The square root of 56457132 is about 7513.7961111545. The cubic root of 56457132 is about 383.6244429328.

The spelling of 56457132 in words is "fifty-six million, four hundred fifty-seven thousand, one hundred thirty-two".