56547940 has 12 divisors (see below), whose sum is σ = 118750716. Its totient is φ = 22619168.

The previous prime is 56547923. The next prime is 56547943. The reversal of 56547940 is 4974565.

It can be written as a sum of positive squares in 2 ways, for example, as 28901376 + 27646564 = 5376^2 + 5258^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56547893 and 56547902.

It is not an unprimeable number, because it can be changed into a prime (56547943) 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, 1413679 + ... + 1413718.

It is an arithmetic number, because the mean of its divisors is an integer number (9895893).

Almost surely, 2^56547940 is an apocalyptic number.

It is an amenable number.

56547940 is an abundant number, since it is smaller than the sum of its proper divisors (62202776).

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

56547940 is a wasteful number, since it uses less digits than its factorization.

56547940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2827406 (or 2827404 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 56547940 is about 7519.8364343914. The cubic root of 56547940 is about 383.8300119285.

The spelling of 56547940 in words is "fifty-six million, five hundred forty-seven thousand, nine hundred forty".