252438293 has 2 divisors, whose sum is σ = 252438294. Its totient is φ = 252438292.

The previous prime is 252438283. The next prime is 252438371. The reversal of 252438293 is 392834252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143089444 + 109348849 = 11962^2 + 10457^2 .

It is a cyclic number.

It is not a de Polignac number, because 252438293 - 2⁶ = 252438229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252438203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126219146 + 126219147.

It is an arithmetic number, because the mean of its divisors is an integer number (126219147).

Almost surely, 2^252438293 is an apocalyptic number.

It is an amenable number.

252438293 is a deficient number, since it is larger than the sum of its proper divisors (1).

252438293 is an equidigital number, since it uses as much as digits as its factorization.

252438293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 38.

The square root of 252438293 is about 15888.3068009149. The cubic root of 252438293 is about 632.0019402881.

The spelling of 252438293 in words is "two hundred fifty-two million, four hundred thirty-eight thousand, two hundred ninety-three".