515155656050 has 48 divisors (see below), whose sum is σ = 1105916127552. Its totient is φ = 174876024000.

The previous prime is 515155656049. The next prime is 515155656053. The reversal of 515155656050 is 50656551515.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 515155655992 and 515155656010.

It is not an unprimeable number, because it can be changed into a prime (515155656053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7251152 + ... + 7321851.

It is an arithmetic number, because the mean of its divisors is an integer number (23039919324).

Almost surely, 2^515155656050 is an apocalyptic number.

515155656050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

515155656050 is an abundant number, since it is smaller than the sum of its proper divisors (590760471502).

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

515155656050 is a wasteful number, since it uses less digits than its factorization.

515155656050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14573123 (or 14573118 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 44.

The spelling of 515155656050 in words is "five hundred fifteen billion, one hundred fifty-five million, six hundred fifty-six thousand, fifty".