515055055956 has 48 divisors (see below), whose sum is σ = 1373705472384. Its totient is φ = 147134445696.

The previous prime is 515055055939. The next prime is 515055056023. The reversal of 515055055956 is 659550550515.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 515055055899 and 515055055908.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15286 + ... + 1015058.

It is an arithmetic number, because the mean of its divisors is an integer number (28618864008).

Almost surely, 2^515055055956 is an apocalyptic number.

It is an amenable number.

515055055956 is an abundant number, since it is smaller than the sum of its proper divisors (858650416428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

515055055956 is a wasteful number, since it uses less digits than its factorization.

515055055956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005920 (or 1005918 counting only the distinct ones).

The product of its (nonzero) digits is 4218750, while the sum is 51.

The spelling of 515055055956 in words is "five hundred fifteen billion, fifty-five million, fifty-five thousand, nine hundred fifty-six".