51450505115 has 16 divisors (see below), whose sum is σ = 62022982656. Its totient is φ = 40972456800.

The previous prime is 51450505097. The next prime is 51450505157. The reversal of 51450505115 is 51150505415.

It is not a de Polignac number, because 51450505115 - 2¹² = 51450501019 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1383920 + ... + 1420610.

It is an arithmetic number, because the mean of its divisors is an integer number (3876436416).

Almost surely, 2^51450505115 is an apocalyptic number.

51450505115 is a deficient number, since it is larger than the sum of its proper divisors (10572477541).

51450505115 is a wasteful number, since it uses less digits than its factorization.

51450505115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37970.

The product of its (nonzero) digits is 12500, while the sum is 32.

The spelling of 51450505115 in words is "fifty-one billion, four hundred fifty million, five hundred five thousand, one hundred fifteen".