56500340 has 24 divisors (see below), whose sum is σ = 127778280. Its totient is φ = 20861568.

The previous prime is 56500331. The next prime is 56500343. The reversal of 56500340 is 4300565.

It can be written as a sum of positive squares in 4 ways, for example, as 4343056 + 52157284 = 2084^2 + 7222^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56500343) 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, 108395 + ... + 108914.

It is an arithmetic number, because the mean of its divisors is an integer number (5324095).

Almost surely, 2^56500340 is an apocalyptic number.

It is an amenable number.

56500340 is an abundant number, since it is smaller than the sum of its proper divisors (71277940).

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

56500340 is a wasteful number, since it uses less digits than its factorization.

56500340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217331 (or 217329 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 56500340 is about 7516.6708056160. The cubic root of 56500340 is about 383.7222836458.

The spelling of 56500340 in words is "fifty-six million, five hundred thousand, three hundred forty".