15015432253 has 2 divisors, whose sum is σ = 15015432254. Its totient is φ = 15015432252.

The previous prime is 15015432239. The next prime is 15015432317. The reversal of 15015432253 is 35223451051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8278634169 + 6736798084 = 90987^2 + 82078^2 .

It is a cyclic number.

It is not a de Polignac number, because 15015432253 - 2⁵ = 15015432221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15015432353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7507716126 + 7507716127.

It is an arithmetic number, because the mean of its divisors is an integer number (7507716127).

Almost surely, 2^15015432253 is an apocalyptic number.

It is an amenable number.

15015432253 is a deficient number, since it is larger than the sum of its proper divisors (1).

15015432253 is an equidigital number, since it uses as much as digits as its factorization.

15015432253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 15015432253 in words is "fifteen billion, fifteen million, four hundred thirty-two thousand, two hundred fifty-three".