252939823 has 2 divisors, whose sum is σ = 252939824. Its totient is φ = 252939822.

The previous prime is 252939781. The next prime is 252939839. The reversal of 252939823 is 328939252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 252939823 - 2¹³ = 252931631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252939823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252939023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126469911 + 126469912.

It is an arithmetic number, because the mean of its divisors is an integer number (126469912).

Almost surely, 2^252939823 is an apocalyptic number.

252939823 is a deficient number, since it is larger than the sum of its proper divisors (1).

252939823 is an equidigital number, since it uses as much as digits as its factorization.

252939823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 43.

The square root of 252939823 is about 15904.0819603019. The cubic root of 252939823 is about 632.4202052159.

The spelling of 252939823 in words is "two hundred fifty-two million, nine hundred thirty-nine thousand, eight hundred twenty-three".