56512340 has 24 divisors (see below), whose sum is σ = 118817160. Its totient is φ = 22578048.

The previous prime is 56512243. The next prime is 56512343. The reversal of 56512340 is 4321565.

It can be written as a sum of positive squares in 4 ways, for example, as 4268356 + 52243984 = 2066^2 + 7228^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56512343) 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, 32534 + ... + 34226.

It is an arithmetic number, because the mean of its divisors is an integer number (4950715).

Almost surely, 2^56512340 is an apocalyptic number.

It is an amenable number.

56512340 is an abundant number, since it is smaller than the sum of its proper divisors (62304820).

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

56512340 is a wasteful number, since it uses less digits than its factorization.

56512340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3371 (or 3369 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 56512340 is about 7517.4689889616. The cubic root of 56512340 is about 383.7494477387.

The spelling of 56512340 in words is "fifty-six million, five hundred twelve thousand, three hundred forty".