51102420115 has 8 divisors (see below), whose sum is σ = 63301062528. Its totient is φ = 39563163840.

The previous prime is 51102420113. The next prime is 51102420137.

51102420115 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51102420115 - 2¹ = 51102420113 is a prime.

It is a super-2 number, since 2×51102420115² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51102420113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164846362 + ... + 164846671.

It is an arithmetic number, because the mean of its divisors is an integer number (7912632816).

Almost surely, 2^51102420115 is an apocalyptic number.

51102420115 is a deficient number, since it is larger than the sum of its proper divisors (12198642413).

51102420115 is a wasteful number, since it uses less digits than its factorization.

51102420115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329693069.

The product of its (nonzero) digits is 400, while the sum is 22.

The spelling of 51102420115 in words is "fifty-one billion, one hundred two million, four hundred twenty thousand, one hundred fifteen".