5312561273 has 2 divisors, whose sum is σ = 5312561274. Its totient is φ = 5312561272.

The previous prime is 5312561239. The next prime is 5312561299. The reversal of 5312561273 is 3721652135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4249996864 + 1062564409 = 65192^2 + 32597^2 .

It is a cyclic number.

It is not a de Polignac number, because 5312561273 - 2⁶ = 5312561209 is a prime.

It is not a weakly prime, because it can be changed into another prime (5312561173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2656280636 + 2656280637.

It is an arithmetic number, because the mean of its divisors is an integer number (2656280637).

Almost surely, 2^5312561273 is an apocalyptic number.

It is an amenable number.

5312561273 is a deficient number, since it is larger than the sum of its proper divisors (1).

5312561273 is an equidigital number, since it uses as much as digits as its factorization.

5312561273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 35.

The square root of 5312561273 is about 72887.3190136666. The cubic root of 5312561273 is about 1744.8897200444.

The spelling of 5312561273 in words is "five billion, three hundred twelve million, five hundred sixty-one thousand, two hundred seventy-three".