252774331573 has 2 divisors, whose sum is σ = 252774331574. Its totient is φ = 252774331572.

The previous prime is 252774331547. The next prime is 252774331577. The reversal of 252774331573 is 375133477252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136395785124 + 116378546449 = 369318^2 + 341143^2 .

It is a cyclic number.

It is not a de Polignac number, because 252774331573 - 2²⁵ = 252740777141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252774331577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126387165786 + 126387165787.

It is an arithmetic number, because the mean of its divisors is an integer number (126387165787).

Almost surely, 2^252774331573 is an apocalyptic number.

It is an amenable number.

252774331573 is a deficient number, since it is larger than the sum of its proper divisors (1).

252774331573 is an equidigital number, since it uses as much as digits as its factorization.

252774331573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3704400, while the sum is 49.

The spelling of 252774331573 in words is "two hundred fifty-two billion, seven hundred seventy-four million, three hundred thirty-one thousand, five hundred seventy-three".