5242501309 has 2 divisors, whose sum is σ = 5242501310. Its totient is φ = 5242501308.

The previous prime is 5242501289. The next prime is 5242501349. The reversal of 5242501309 is 9031052425.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5171048100 + 71453209 = 71910^2 + 8453^2 .

It is a cyclic number.

It is not a de Polignac number, because 5242501309 - 2⁹ = 5242500797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5242501349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2621250654 + 2621250655.

It is an arithmetic number, because the mean of its divisors is an integer number (2621250655).

Almost surely, 2^5242501309 is an apocalyptic number.

It is an amenable number.

5242501309 is a deficient number, since it is larger than the sum of its proper divisors (1).

5242501309 is an equidigital number, since it uses as much as digits as its factorization.

5242501309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 5242501309 is about 72405.1193562997. The cubic root of 5242501309 is about 1737.1854472171.

The spelling of 5242501309 in words is "five billion, two hundred forty-two million, five hundred one thousand, three hundred nine".