56275515 has 36 divisors (see below), whose sum is σ = 101091744. Its totient is φ = 28959168.

The previous prime is 56275507. The next prime is 56275543. The reversal of 56275515 is 51557265.

It is a happy number.

It is not a de Polignac number, because 56275515 - 2³ = 56275507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56275515.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 37102 + ... + 38588.

It is an arithmetic number, because the mean of its divisors is an integer number (2808104).

Almost surely, 2^56275515 is an apocalyptic number.

56275515 is a deficient number, since it is larger than the sum of its proper divisors (44816229).

56275515 is a wasteful number, since it uses less digits than its factorization.

56275515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556 (or 1524 counting only the distinct ones).

The product of its digits is 52500, while the sum is 36.

The square root of 56275515 is about 7501.7008071503. The cubic root of 56275515 is about 383.2126404326.

The spelling of 56275515 in words is "fifty-six million, two hundred seventy-five thousand, five hundred fifteen".