56051505 has 12 divisors (see below), whose sum is σ = 97156020. Its totient is φ = 29894112.

The previous prime is 56051491. The next prime is 56051509. The reversal of 56051505 is 50515065.

56051505 is a `hidden beast` number, since 5 + 605 + 1 + 50 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13905441 + 42146064 = 3729^2 + 6492^2 .

It is not a de Polignac number, because 56051505 - 2⁵ = 56051473 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56051509) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 622750 + ... + 622839.

It is an arithmetic number, because the mean of its divisors is an integer number (8096335).

Almost surely, 2^56051505 is an apocalyptic number.

It is an amenable number.

56051505 is a deficient number, since it is larger than the sum of its proper divisors (41104515).

56051505 is a wasteful number, since it uses less digits than its factorization.

56051505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245600 (or 1245597 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 56051505 is about 7486.7553052040. The cubic root of 56051505 is about 382.7034929001.

The spelling of 56051505 in words is "fifty-six million, fifty-one thousand, five hundred five".