51250558273 has 2 divisors, whose sum is σ = 51250558274. Its totient is φ = 51250558272.

The previous prime is 51250558259. The next prime is 51250558283. The reversal of 51250558273 is 37285505215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35356409089 + 15894149184 = 188033^2 + 126072^2 .

It is a cyclic number.

It is not a de Polignac number, because 51250558273 - 2²⁹ = 50713687361 is a prime.

It is not a weakly prime, because it can be changed into another prime (51250558283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25625279136 + 25625279137.

It is an arithmetic number, because the mean of its divisors is an integer number (25625279137).

Almost surely, 2^51250558273 is an apocalyptic number.

It is an amenable number.

51250558273 is a deficient number, since it is larger than the sum of its proper divisors (1).

51250558273 is an equidigital number, since it uses as much as digits as its factorization.

51250558273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420000, while the sum is 43.

The spelling of 51250558273 in words is "fifty-one billion, two hundred fifty million, five hundred fifty-eight thousand, two hundred seventy-three".