252560551293949 has 2 divisors, whose sum is σ = 252560551293950. Its totient is φ = 252560551293948.

The previous prime is 252560551293917. The next prime is 252560551293989. The reversal of 252560551293949 is 949392155065252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252108184747225 + 452366546724 = 15877915^2 + 672582^2 .

It is a cyclic number.

It is not a de Polignac number, because 252560551293949 - 2⁵ = 252560551293917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252560551293989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126280275646974 + 126280275646975.

It is an arithmetic number, because the mean of its divisors is an integer number (126280275646975).

Almost surely, 2^{252560551293949} is an apocalyptic number.

It is an amenable number.

252560551293949 is a deficient number, since it is larger than the sum of its proper divisors (1).

252560551293949 is an equidigital number, since it uses as much as digits as its factorization.

252560551293949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 262440000, while the sum is 67.

The spelling of 252560551293949 in words is "two hundred fifty-two trillion, five hundred sixty billion, five hundred fifty-one million, two hundred ninety-three thousand, nine hundred forty-nine".