51594919373 has 2 divisors, whose sum is σ = 51594919374. Its totient is φ = 51594919372.

The previous prime is 51594919361. The next prime is 51594919433. The reversal of 51594919373 is 37391949515.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47839313284 + 3755606089 = 218722^2 + 61283^2 .

It is a cyclic number.

It is not a de Polignac number, because 51594919373 - 2²⁴ = 51578142157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51594919333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25797459686 + 25797459687.

It is an arithmetic number, because the mean of its divisors is an integer number (25797459687).

Almost surely, 2^51594919373 is an apocalyptic number.

It is an amenable number.

51594919373 is a deficient number, since it is larger than the sum of its proper divisors (1).

51594919373 is an equidigital number, since it uses as much as digits as its factorization.

51594919373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4592700, while the sum is 56.

The spelling of 51594919373 in words is "fifty-one billion, five hundred ninety-four million, nine hundred nineteen thousand, three hundred seventy-three".