54416515515 has 16 divisors (see below), whose sum is σ = 87075468288. Its totient is φ = 29019127136.

The previous prime is 54416515507. The next prime is 54416515537. The reversal of 54416515515 is 51551561445.

It is a cyclic number.

It is not a de Polignac number, because 54416515515 - 2³ = 54416515507 is a prime.

It is a super-2 number, since 2×54416515515² (a number of 22 digits) contains 22 as substring.

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, 35157 + ... + 331766.

It is an arithmetic number, because the mean of its divisors is an integer number (5442216768).

Almost surely, 2^54416515515 is an apocalyptic number.

54416515515 is a deficient number, since it is larger than the sum of its proper divisors (32658952773).

54416515515 is a wasteful number, since it uses less digits than its factorization.

54416515515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376818.

The product of its digits is 300000, while the sum is 42.

The spelling of 54416515515 in words is "fifty-four billion, four hundred sixteen million, five hundred fifteen thousand, five hundred fifteen".