56995515 has 32 divisors (see below), whose sum is σ = 104601600. Its totient is φ = 29414880.

The previous prime is 56995513. The next prime is 56995517. The reversal of 56995515 is 51559965.

56995515 is a `hidden beast` number, since 5 + 6 + 99 + 551 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (56995513) and next prime (56995517).

It is not a de Polignac number, because 56995515 - 2¹ = 56995513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (56995513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2625 + ... + 10994.

It is an arithmetic number, because the mean of its divisors is an integer number (3268800).

Almost surely, 2^56995515 is an apocalyptic number.

56995515 is a deficient number, since it is larger than the sum of its proper divisors (47606085).

56995515 is a wasteful number, since it uses less digits than its factorization.

56995515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13664 (or 13658 counting only the distinct ones).

The product of its digits is 303750, while the sum is 45.

The square root of 56995515 is about 7549.5374030466. The cubic root of 56995515 is about 384.8400189872.

The spelling of 56995515 in words is "fifty-six million, nine hundred ninety-five thousand, five hundred fifteen".