51594919361 has 2 divisors, whose sum is σ = 51594919362. Its totient is φ = 51594919360.

The previous prime is 51594919351. The next prime is 51594919373. The reversal of 51594919361 is 16391949515.

51594919361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48965280961 + 2629638400 = 221281^2 + 51280^2 .

It is a cyclic number.

It is not a de Polignac number, because 51594919361 - 2⁶ = 51594919297 is a prime.

It is not a weakly prime, because it can be changed into another prime (51594919331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25797459680 + 25797459681.

It is an arithmetic number, because the mean of its divisors is an integer number (25797459681).

Almost surely, 2^51594919361 is an apocalyptic number.

It is an amenable number.

51594919361 is a deficient number, since it is larger than the sum of its proper divisors (1).

51594919361 is an equidigital number, since it uses as much as digits as its factorization.

51594919361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1312200, while the sum is 53.

The spelling of 51594919361 in words is "fifty-one billion, five hundred ninety-four million, nine hundred nineteen thousand, three hundred sixty-one".