252291773 has 2 divisors, whose sum is σ = 252291774. Its totient is φ = 252291772.

The previous prime is 252291763. The next prime is 252291779. The reversal of 252291773 is 377192252.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129458884 + 122832889 = 11378^2 + 11083^2 .

It is a cyclic number.

It is not a de Polignac number, because 252291773 - 2²⁶ = 185182909 is a prime.

It is a super-2 number, since 2×252291773² = 127302277446967058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252291779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126145886 + 126145887.

It is an arithmetic number, because the mean of its divisors is an integer number (126145887).

Almost surely, 2^252291773 is an apocalyptic number.

It is an amenable number.

252291773 is a deficient number, since it is larger than the sum of its proper divisors (1).

252291773 is an equidigital number, since it uses as much as digits as its factorization.

252291773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 38.

The square root of 252291773 is about 15883.6951934995. The cubic root of 252291773 is about 631.8796412967.

The spelling of 252291773 in words is "two hundred fifty-two million, two hundred ninety-one thousand, seven hundred seventy-three".