51475653373 has 2 divisors, whose sum is σ = 51475653374. Its totient is φ = 51475653372.

The previous prime is 51475653329. The next prime is 51475653391. The reversal of 51475653373 is 37335657415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30800952004 + 20674701369 = 175502^2 + 143787^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51475653373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51475653973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25737826686 + 25737826687.

It is an arithmetic number, because the mean of its divisors is an integer number (25737826687).

Almost surely, 2^51475653373 is an apocalyptic number.

It is an amenable number.

51475653373 is a deficient number, since it is larger than the sum of its proper divisors (1).

51475653373 is an equidigital number, since it uses as much as digits as its factorization.

51475653373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3969000, while the sum is 49.

The spelling of 51475653373 in words is "fifty-one billion, four hundred seventy-five million, six hundred fifty-three thousand, three hundred seventy-three".