51252444425213 has 2 divisors, whose sum is σ = 51252444425214. Its totient is φ = 51252444425212.

The previous prime is 51252444425191. The next prime is 51252444425219. The reversal of 51252444425213 is 31252444425215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49594806200164 + 1657638225049 = 7042358^2 + 1287493^2 .

It is a cyclic number.

It is not a de Polignac number, because 51252444425213 - 2³⁴ = 51235264556029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51252444425219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25626222212606 + 25626222212607.

It is an arithmetic number, because the mean of its divisors is an integer number (25626222212607).

Almost surely, 2^{51252444425213} is an apocalyptic number.

It is an amenable number.

51252444425213 is a deficient number, since it is larger than the sum of its proper divisors (1).

51252444425213 is an equidigital number, since it uses as much as digits as its factorization.

51252444425213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1536000, while the sum is 44.

The spelling of 51252444425213 in words is "fifty-one trillion, two hundred fifty-two billion, four hundred forty-four million, four hundred twenty-five thousand, two hundred thirteen".