56007540 has 36 divisors (see below), whose sum is σ = 169890084. Its totient is φ = 14935296.

The previous prime is 56007493. The next prime is 56007559. The reversal of 56007540 is 4570065.

56007540 is a `hidden beast` number, since 5 + 600 + 7 + 54 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 17740944 + 38266596 = 4212^2 + 6186^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155397 + ... + 155756.

It is an arithmetic number, because the mean of its divisors is an integer number (4719169).

Almost surely, 2^56007540 is an apocalyptic number.

It is an amenable number.

56007540 is an abundant number, since it is smaller than the sum of its proper divisors (113882544).

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

56007540 is a wasteful number, since it uses less digits than its factorization.

56007540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311168 (or 311163 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 56007540 is about 7483.8185440322. The cubic root of 56007540 is about 382.6034066186.

The spelling of 56007540 in words is "fifty-six million, seven thousand, five hundred forty".