252271499 has 2 divisors, whose sum is σ = 252271500. Its totient is φ = 252271498.

The previous prime is 252271471. The next prime is 252271501. The reversal of 252271499 is 994172252.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252271499 is a prime.

It is a Sophie Germain prime.

Together with 252271501, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (252271469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126135749 + 126135750.

It is an arithmetic number, because the mean of its divisors is an integer number (126135750).

Almost surely, 2^252271499 is an apocalyptic number.

252271499 is a deficient number, since it is larger than the sum of its proper divisors (1).

252271499 is an equidigital number, since it uses as much as digits as its factorization.

252271499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 41.

The square root of 252271499 is about 15883.0569790579. The cubic root of 252271499 is about 631.8627150333.

The spelling of 252271499 in words is "two hundred fifty-two million, two hundred seventy-one thousand, four hundred ninety-nine".