51270735625 has 40 divisors (see below), whose sum is σ = 67899465216. Its totient is φ = 38568096000.

The previous prime is 51270735623. The next prime is 51270735641. The reversal of 51270735625 is 52653707215.

It is not a de Polignac number, because 51270735625 - 2¹ = 51270735623 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51270735623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 19368052 + ... + 19370698.

Almost surely, 2^51270735625 is an apocalyptic number.

It is an amenable number.

51270735625 is a deficient number, since it is larger than the sum of its proper divisors (16628729591).

51270735625 is a wasteful number, since it uses less digits than its factorization.

51270735625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4507 (or 4492 counting only the distinct ones).

The product of its (nonzero) digits is 441000, while the sum is 43.

The spelling of 51270735625 in words is "fifty-one billion, two hundred seventy million, seven hundred thirty-five thousand, six hundred twenty-five".