51125583674955 has 16 divisors (see below), whose sum is σ = 81804397213440. Its totient is φ = 27265823515488.

The previous prime is 51125583674929. The next prime is 51125583674969. The reversal of 51125583674955 is 55947638552115.

It is a happy number.

It is not a de Polignac number, because 51125583674955 - 2⁸ = 51125583674699 is a prime.

It is a super-2 number, since 2×51125583674955² (a number of 28 digits) contains 22 as substring.

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, 71786625 + ... + 72495314.

It is an arithmetic number, because the mean of its divisors is an integer number (5112774825840).

Almost surely, 2^{51125583674955} is an apocalyptic number.

51125583674955 is a deficient number, since it is larger than the sum of its proper divisors (30678813538485).

51125583674955 is a wasteful number, since it uses less digits than its factorization.

51125583674955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144305570.

The product of its digits is 226800000, while the sum is 66.

The spelling of 51125583674955 in words is "fifty-one trillion, one hundred twenty-five billion, five hundred eighty-three million, six hundred seventy-four thousand, nine hundred fifty-five".