56417255109215 has 64 divisors (see below), whose sum is σ = 91508910796800. Its totient is φ = 32245996285440.

The previous prime is 56417255109211. The next prime is 56417255109227. The reversal of 56417255109215 is 51290155271465.

It is a happy number.

It is not a de Polignac number, because 56417255109215 - 2² = 56417255109211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56417255109211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37080359 + ... + 38571848.

It is an arithmetic number, because the mean of its divisors is an integer number (1429826731200).

Almost surely, 2^{56417255109215} is an apocalyptic number.

56417255109215 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56417255109215 is a deficient number, since it is larger than the sum of its proper divisors (35091655687585).

56417255109215 is a wasteful number, since it uses less digits than its factorization.

56417255109215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75652392.

The product of its (nonzero) digits is 3780000, while the sum is 53.

The spelling of 56417255109215 in words is "fifty-six trillion, four hundred seventeen billion, two hundred fifty-five million, one hundred nine thousand, two hundred fifteen".