56061515011535 has 16 divisors (see below), whose sum is σ = 73395450220320. Its totient is φ = 40768771712640.

The previous prime is 56061515011529. The next prime is 56061515011547. The reversal of 56061515011535 is 53511051516065.

It is not a de Polignac number, because 56061515011535 - 2²⁸ = 56061246576079 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39791372 + ... + 41176161.

It is an arithmetic number, because the mean of its divisors is an integer number (4587215638770).

Almost surely, 2^{56061515011535} is an apocalyptic number.

56061515011535 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56061515011535 is a deficient number, since it is larger than the sum of its proper divisors (17333935208785).

56061515011535 is a wasteful number, since it uses less digits than its factorization.

56061515011535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80980138.

The product of its (nonzero) digits is 337500, while the sum is 44.

The spelling of 56061515011535 in words is "fifty-six trillion, sixty-one billion, five hundred fifteen million, eleven thousand, five hundred thirty-five".