252707251 has 2 divisors, whose sum is σ = 252707252. Its totient is φ = 252707250.

The previous prime is 252707249. The next prime is 252707263. The reversal of 252707251 is 152707252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252707251 - 2¹ = 252707249 is a prime.

Together with 252707249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (252707291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126353625 + 126353626.

It is an arithmetic number, because the mean of its divisors is an integer number (126353626).

Almost surely, 2^252707251 is an apocalyptic number.

252707251 is a deficient number, since it is larger than the sum of its proper divisors (1).

252707251 is an equidigital number, since it uses as much as digits as its factorization.

252707251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 252707251 is about 15896.7685710021. The cubic root of 252707251 is about 632.2263141248.

Subtracting from 252707251 its reverse (152707252), we obtain a palindrome (99999999).

The spelling of 252707251 in words is "two hundred fifty-two million, seven hundred seven thousand, two hundred fifty-one".