51457155175415 has 128 divisors (see below), whose sum is σ = 71723783577600. Its totient is φ = 35099516160000.

The previous prime is 51457155175397. The next prime is 51457155175441.

51457155175415 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51457155175415 - 2¹⁰ = 51457155174391 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1557922121 + ... + 1557955149.

It is an arithmetic number, because the mean of its divisors is an integer number (560342059200).

Almost surely, 2^{51457155175415} is an apocalyptic number.

51457155175415 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51457155175415 is a deficient number, since it is larger than the sum of its proper divisors (20266628402185).

51457155175415 is a wasteful number, since it uses less digits than its factorization.

51457155175415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33369.

The product of its digits is 12250000, while the sum is 56.

The spelling of 51457155175415 in words is "fifty-one trillion, four hundred fifty-seven billion, one hundred fifty-five million, one hundred seventy-five thousand, four hundred fifteen".