51340375225 has 24 divisors (see below), whose sum is σ = 64891150272. Its totient is φ = 40280011200.

The previous prime is 51340375217. The next prime is 51340375259. The reversal of 51340375225 is 52257304315.

It is a happy number.

It is not a de Polignac number, because 51340375225 - 2³ = 51340375217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 3691134 + ... + 3705016.

It is an arithmetic number, because the mean of its divisors is an integer number (2703797928).

Almost surely, 2^51340375225 is an apocalyptic number.

It is an amenable number.

51340375225 is a deficient number, since it is larger than the sum of its proper divisors (13550775047).

51340375225 is a wasteful number, since it uses less digits than its factorization.

51340375225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16737 (or 16732 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 37.

The spelling of 51340375225 in words is "fifty-one billion, three hundred forty million, three hundred seventy-five thousand, two hundred twenty-five".