56321551015 has 8 divisors (see below), whose sum is σ = 68693826528. Its totient is φ = 44318597280.

The previous prime is 56321551003. The next prime is 56321551043. The reversal of 56321551015 is 51015512365.

56321551015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56321551015 - 2⁹ = 56321550503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92330107 + ... + 92330716.

It is an arithmetic number, because the mean of its divisors is an integer number (8586728316).

Almost surely, 2^56321551015 is an apocalyptic number.

56321551015 is a deficient number, since it is larger than the sum of its proper divisors (12372275513).

56321551015 is a wasteful number, since it uses less digits than its factorization.

56321551015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184660889.

The product of its (nonzero) digits is 22500, while the sum is 34.

The spelling of 56321551015 in words is "fifty-six billion, three hundred twenty-one million, five hundred fifty-one thousand, fifteen".