252040423 has 2 divisors, whose sum is σ = 252040424. Its totient is φ = 252040422.

The previous prime is 252040379. The next prime is 252040429. The reversal of 252040423 is 324040252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 252040423 - 2²⁵ = 218485991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 252040394 and 252040403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252040429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126020211 + 126020212.

It is an arithmetic number, because the mean of its divisors is an integer number (126020212).

Almost surely, 2^252040423 is an apocalyptic number.

252040423 is a deficient number, since it is larger than the sum of its proper divisors (1).

252040423 is an equidigital number, since it uses as much as digits as its factorization.

252040423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 252040423 is about 15875.7810201577. The cubic root of 252040423 is about 631.6697312674.

Adding to 252040423 its reverse (324040252), we get a palindrome (576080675).

The spelling of 252040423 in words is "two hundred fifty-two million, forty thousand, four hundred twenty-three".