51020413115 has 16 divisors (see below), whose sum is σ = 71117918400. Its totient is φ = 34411893120.

The previous prime is 51020413111. The next prime is 51020413117. The reversal of 51020413115 is 51131402015.

It is not a de Polignac number, because 51020413115 - 2² = 51020413111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51020413111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11946440 + ... + 11950709.

It is an arithmetic number, because the mean of its divisors is an integer number (4444869900).

Almost surely, 2^51020413115 is an apocalyptic number.

51020413115 is a deficient number, since it is larger than the sum of its proper divisors (20097505285).

51020413115 is a wasteful number, since it uses less digits than its factorization.

51020413115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23897222.

The product of its (nonzero) digits is 600, while the sum is 23.

The spelling of 51020413115 in words is "fifty-one billion, twenty million, four hundred thirteen thousand, one hundred fifteen".