51530675675 has 24 divisors (see below), whose sum is σ = 68363771760. Its totient is φ = 38414563200.

The previous prime is 51530675659. The next prime is 51530675683. The reversal of 51530675675 is 57657603515.

It is a happy number.

It is not a de Polignac number, because 51530675675 - 2⁴ = 51530675659 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 860252 + ... + 918201.

It is an arithmetic number, because the mean of its divisors is an integer number (2848490490).

Almost surely, 2^51530675675 is an apocalyptic number.

51530675675 is a deficient number, since it is larger than the sum of its proper divisors (16833096085).

51530675675 is a wasteful number, since it uses less digits than its factorization.

51530675675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778543 (or 1778538 counting only the distinct ones).

The product of its (nonzero) digits is 3307500, while the sum is 50.

The spelling of 51530675675 in words is "fifty-one billion, five hundred thirty million, six hundred seventy-five thousand, six hundred seventy-five".