51386530830425 has 36 divisors (see below), whose sum is σ = 75060707950080. Its totient is φ = 34790446847520.

The previous prime is 51386530830413. The next prime is 51386530830443. The reversal of 51386530830425 is 52403803568315.

It is not a de Polignac number, because 51386530830425 - 2²⁰ = 51386529781849 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 265398089 + ... + 265591638.

It is an arithmetic number, because the mean of its divisors is an integer number (2085019665280).

Almost surely, 2^{51386530830425} is an apocalyptic number.

It is an amenable number.

51386530830425 is a deficient number, since it is larger than the sum of its proper divisors (23674177119655).

51386530830425 is a wasteful number, since it uses less digits than its factorization.

51386530830425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530989830 (or 530989818 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 53.

The spelling of 51386530830425 in words is "fifty-one trillion, three hundred eighty-six billion, five hundred thirty million, eight hundred thirty thousand, four hundred twenty-five".