56240632 has 48 divisors (see below), whose sum is σ = 125028360. Its totient is φ = 23639616.

The previous prime is 56240609. The next prime is 56240633. The reversal of 56240632 is 23604265.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 56240632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56240633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19423 + ... + 22129.

Almost surely, 2^56240632 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 56240632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62514180).

56240632 is an abundant number, since it is smaller than the sum of its proper divisors (68787728).

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

56240632 is a wasteful number, since it uses less digits than its factorization.

56240632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780 (or 2769 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 56240632 is about 7499.3754406617. The cubic root of 56240632 is about 383.1334445366.

Adding to 56240632 its reverse (23604265), we get a palindrome (79844897).

The spelling of 56240632 in words is "fifty-six million, two hundred forty thousand, six hundred thirty-two".