51157552377 has 16 divisors (see below), whose sum is σ = 68743870272. Its totient is φ = 33838234560.

The previous prime is 51157552363. The next prime is 51157552417. The reversal of 51157552377 is 77325575115.

It is a happy number.

It is not a de Polignac number, because 51157552377 - 2²² = 51153358073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51157552777) 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, 2945523 + ... + 2962839.

It is an arithmetic number, because the mean of its divisors is an integer number (4296491892).

Almost surely, 2^51157552377 is an apocalyptic number.

It is an amenable number.

51157552377 is a deficient number, since it is larger than the sum of its proper divisors (17586317895).

51157552377 is a wasteful number, since it uses less digits than its factorization.

51157552377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24968.

The product of its digits is 1286250, while the sum is 48.

The spelling of 51157552377 in words is "fifty-one billion, one hundred fifty-seven million, five hundred fifty-two thousand, three hundred seventy-seven".