56299240 has 32 divisors (see below), whose sum is σ = 134126280. Its totient is φ = 21194752.

The previous prime is 56299213. The next prime is 56299241. The reversal of 56299240 is 4299265.

It can be written as a sum of positive squares in 4 ways, for example, as 55681444 + 617796 = 7462^2 + 786^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 56299240.

It is not an unprimeable number, because it can be changed into a prime (56299241) 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, 40717 + ... + 42076.

Almost surely, 2^56299240 is an apocalyptic number.

It is an amenable number.

56299240 is an abundant number, since it is smaller than the sum of its proper divisors (77827040).

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

56299240 is a wasteful number, since it uses less digits than its factorization.

56299240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82821 (or 82817 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 56299240 is about 7503.2819485876. The cubic root of 56299240 is about 383.2664852977.

The spelling of 56299240 in words is "fifty-six million, two hundred ninety-nine thousand, two hundred forty".