56242240 has 28 divisors (see below), whose sum is σ = 133927596. Its totient is φ = 22496768.

The previous prime is 56242217. The next prime is 56242243. The reversal of 56242240 is 4224265.

It can be written as a sum of positive squares in 2 ways, for example, as 43454464 + 12787776 = 6592^2 + 3576^2 .

It is not an unprimeable number, because it can be changed into a prime (56242243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87559 + ... + 88198.

Almost surely, 2^56242240 is an apocalyptic number.

It is an amenable number.

56242240 is an abundant number, since it is smaller than the sum of its proper divisors (77685356).

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

56242240 is a wasteful number, since it uses less digits than its factorization.

56242240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175774 (or 175764 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 56242240 is about 7499.4826488232. The cubic root of 56242240 is about 383.1370959459.

The spelling of 56242240 in words is "fifty-six million, two hundred forty-two thousand, two hundred forty".