56501515567 has 16 divisors (see below), whose sum is σ = 66816590400. Its totient is φ = 46748136960.

The previous prime is 56501515531. The next prime is 56501515583. The reversal of 56501515567 is 76551510565.

It is not a de Polignac number, because 56501515567 - 2⁷ = 56501515439 is a prime.

It is a super-2 number, since 2×56501515567² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56501515507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 828109 + ... + 893737.

It is an arithmetic number, because the mean of its divisors is an integer number (4176036900).

Almost surely, 2^56501515567 is an apocalyptic number.

56501515567 is a deficient number, since it is larger than the sum of its proper divisors (10315074833).

56501515567 is a wasteful number, since it uses less digits than its factorization.

56501515567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69906.

The product of its (nonzero) digits is 787500, while the sum is 46.

The spelling of 56501515567 in words is "fifty-six billion, five hundred one million, five hundred fifteen thousand, five hundred sixty-seven".