56490432 has 56 divisors (see below), whose sum is σ = 154301952. Its totient is φ = 18220800.

The previous prime is 56490409. The next prime is 56490437. The reversal of 56490432 is 23409465.

It is a junction number, because it is equal to n+sod(n) for n = 56490393 and 56490402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56490437) 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, 1207 + ... + 10697.

It is an arithmetic number, because the mean of its divisors is an integer number (2755392).

Almost surely, 2^56490432 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 56490432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77150976).

56490432 is an abundant number, since it is smaller than the sum of its proper divisors (97811520).

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

56490432 is a wasteful number, since it uses less digits than its factorization.

56490432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9537 (or 9527 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 56490432 is about 7516.0117083464. The cubic root of 56490432 is about 383.6998522608.

Adding to 56490432 its reverse (23409465), we get a palindrome (79899897).

The spelling of 56490432 in words is "fifty-six million, four hundred ninety thousand, four hundred thirty-two".