15255252973 has 2 divisors, whose sum is σ = 15255252974. Its totient is φ = 15255252972.

The previous prime is 15255252949. The next prime is 15255253021. The reversal of 15255252973 is 37925255251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14396880169 + 858372804 = 119987^2 + 29298^2 .

It is a cyclic number.

It is not a de Polignac number, because 15255252973 - 2⁹ = 15255252461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15255252913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7627626486 + 7627626487.

It is an arithmetic number, because the mean of its divisors is an integer number (7627626487).

Almost surely, 2^15255252973 is an apocalyptic number.

It is an amenable number.

15255252973 is a deficient number, since it is larger than the sum of its proper divisors (1).

15255252973 is an equidigital number, since it uses as much as digits as its factorization.

15255252973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 945000, while the sum is 46.

The spelling of 15255252973 in words is "fifteen billion, two hundred fifty-five million, two hundred fifty-two thousand, nine hundred seventy-three".