51245463633425 has 6 divisors (see below), whose sum is σ = 63544374905478. Its totient is φ = 40996370906720.

The previous prime is 51245463633379. The next prime is 51245463633527. The reversal of 51245463633425 is 52433636454215.

It can be written as a sum of positive squares in 3 ways, for example, as 3077810588161 + 48167653045264 = 1754369^2 + 6940292^2 .

It is not a de Polignac number, because 51245463633425 - 2⁶ = 51245463633361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1024909272644 + ... + 1024909272693.

It is an arithmetic number, because the mean of its divisors is an integer number (10590729150913).

Almost surely, 2^{51245463633425} is an apocalyptic number.

It is an amenable number.

51245463633425 is a deficient number, since it is larger than the sum of its proper divisors (12298911272053).

51245463633425 is a wasteful number, since it uses less digits than its factorization.

51245463633425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049818545347 (or 2049818545342 counting only the distinct ones).

The product of its digits is 31104000, while the sum is 53.

The spelling of 51245463633425 in words is "fifty-one trillion, two hundred forty-five billion, four hundred sixty-three million, six hundred thirty-three thousand, four hundred twenty-five".