515055055955 has 24 divisors (see below), whose sum is σ = 708899367456. Its totient is φ = 358299159680.

The previous prime is 515055055939. The next prime is 515055056023. The reversal of 515055055955 is 559550550515.

It is not a de Polignac number, because 515055055955 - 2⁴ = 515055055939 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18493274 + ... + 18521103.

It is an arithmetic number, because the mean of its divisors is an integer number (29537473644).

Almost surely, 2^515055055955 is an apocalyptic number.

515055055955 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

515055055955 is a deficient number, since it is larger than the sum of its proper divisors (193844311501).

515055055955 is a wasteful number, since it uses less digits than its factorization.

515055055955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37014427 (or 37014416 counting only the distinct ones).

The product of its (nonzero) digits is 3515625, while the sum is 50.

The spelling of 515055055955 in words is "five hundred fifteen billion, fifty-five million, fifty-five thousand, nine hundred fifty-five".