515651505050 has 24 divisors (see below), whose sum is σ = 1046303782272. Its totient is φ = 187509638000.

The previous prime is 515651505037. The next prime is 515651505053. The reversal of 515651505050 is 50505156515.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 515651504995 and 515651505013.

It is not an unprimeable number, because it can be changed into a prime (515651505053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 468773546 + ... + 468774645.

It is an arithmetic number, because the mean of its divisors is an integer number (43595990928).

Almost surely, 2^515651505050 is an apocalyptic number.

515651505050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

515651505050 is an abundant number, since it is smaller than the sum of its proper divisors (530652277222).

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

515651505050 is a wasteful number, since it uses less digits than its factorization.

515651505050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937548214 (or 937548209 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 38.

The spelling of 515651505050 in words is "five hundred fifteen billion, six hundred fifty-one million, five hundred five thousand, fifty".