5125202551309 has 2 divisors, whose sum is σ = 5125202551310. Its totient is φ = 5125202551308.

The previous prime is 5125202551283. The next prime is 5125202551331. The reversal of 5125202551309 is 9031552025215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4427985901284 + 697216650025 = 2104278^2 + 834995^2 .

It is a cyclic number.

It is not a de Polignac number, because 5125202551309 - 2⁷ = 5125202551181 is a prime.

It is a super-2 number, since 2×5125202551309² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5125202551109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2562601275654 + 2562601275655.

It is an arithmetic number, because the mean of its divisors is an integer number (2562601275655).

Almost surely, 2^{5125202551309} is an apocalyptic number.

It is an amenable number.

5125202551309 is a deficient number, since it is larger than the sum of its proper divisors (1).

5125202551309 is an equidigital number, since it uses as much as digits as its factorization.

5125202551309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 5125202551309 in words is "five trillion, one hundred twenty-five billion, two hundred two million, five hundred fifty-one thousand, three hundred nine".