56077540 has 12 divisors (see below), whose sum is σ = 117762876. Its totient is φ = 22431008.

The previous prime is 56077529. The next prime is 56077559. The reversal of 56077540 is 4577065.

It can be written as a sum of positive squares in 2 ways, for example, as 19571776 + 36505764 = 4424^2 + 6042^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56077496 and 56077505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1401919 + ... + 1401958.

It is an arithmetic number, because the mean of its divisors is an integer number (9813573).

Almost surely, 2^56077540 is an apocalyptic number.

It is an amenable number.

56077540 is an abundant number, since it is smaller than the sum of its proper divisors (61685336).

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

56077540 is a wasteful number, since it uses less digits than its factorization.

56077540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803886 (or 2803884 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 56077540 is about 7488.4938405530. The cubic root of 56077540 is about 382.7627368828.

The spelling of 56077540 in words is "fifty-six million, seventy-seven thousand, five hundred forty".