56332840 has 32 divisors (see below), whose sum is σ = 127423080. Its totient is φ = 22413312.

The previous prime is 56332831. The next prime is 56332841. The reversal of 56332840 is 4823365.

56332840 = 360² + 361² + ... + 599².

It can be written as a sum of positive squares in 4 ways, for example, as 34035556 + 22297284 = 5834^2 + 4722^2 .

It is not an unprimeable number, because it can be changed into a prime (56332841) 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, 4072 + ... + 11368.

Almost surely, 2^56332840 is an apocalyptic number.

It is an amenable number.

56332840 is an abundant number, since it is smaller than the sum of its proper divisors (71090240).

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

56332840 is a wasteful number, since it uses less digits than its factorization.

56332840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7501 (or 7497 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 56332840 is about 7505.5206348394. The cubic root of 56332840 is about 383.3427160064.

The spelling of 56332840 in words is "fifty-six million, three hundred thirty-two thousand, eight hundred forty".