51125546013506 has 32 divisors (see below), whose sum is σ = 83819512032768. Its totient is φ = 23282764427520.

The previous prime is 51125546013469. The next prime is 51125546013517. The reversal of 51125546013506 is 60531064552115.

It is a super-2 number, since 2×51125546013506² (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, 185717441 + ... + 185992523.

It is an arithmetic number, because the mean of its divisors is an integer number (2619359751024).

Almost surely, 2^{51125546013506} is an apocalyptic number.

51125546013506 is a deficient number, since it is larger than the sum of its proper divisors (32693966019262).

51125546013506 is a wasteful number, since it uses less digits than its factorization.

51125546013506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451466.

The product of its (nonzero) digits is 540000, while the sum is 44.

The spelling of 51125546013506 in words is "fifty-one trillion, one hundred twenty-five billion, five hundred forty-six million, thirteen thousand, five hundred six".