51156351444025 has 6 divisors (see below), whose sum is σ = 63433875790622. Its totient is φ = 40925081155200.

The previous prime is 51156351444013. The next prime is 51156351444041. The reversal of 51156351444025 is 52044415365115.

It can be written as a sum of positive squares in 3 ways, for example, as 17302072499776 + 33854278944249 = 4159576^2 + 5818443^2 .

It is a de Polignac number, because none of the positive numbers 2^k-51156351444025 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, 1023127028856 + ... + 1023127028905.

Almost surely, 2^{51156351444025} is an apocalyptic number.

It is an amenable number.

51156351444025 is a deficient number, since it is larger than the sum of its proper divisors (12277524346597).

51156351444025 is a wasteful number, since it uses less digits than its factorization.

51156351444025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046254057771 (or 2046254057766 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 46.

The spelling of 51156351444025 in words is "fifty-one trillion, one hundred fifty-six billion, three hundred fifty-one million, four hundred forty-four thousand, twenty-five".