252726917 has 2 divisors, whose sum is σ = 252726918. Its totient is φ = 252726916.

The previous prime is 252726907. The next prime is 252726937. The reversal of 252726917 is 719627252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245831041 + 6895876 = 15679^2 + 2626^2 .

It is a cyclic number.

It is not a de Polignac number, because 252726917 - 2⁶ = 252726853 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252726907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126363458 + 126363459.

It is an arithmetic number, because the mean of its divisors is an integer number (126363459).

Almost surely, 2^252726917 is an apocalyptic number.

It is an amenable number.

252726917 is a deficient number, since it is larger than the sum of its proper divisors (1).

252726917 is an equidigital number, since it uses as much as digits as its factorization.

252726917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 41.

The square root of 252726917 is about 15897.3871123528. The cubic root of 252726917 is about 632.2427139183.

The spelling of 252726917 in words is "two hundred fifty-two million, seven hundred twenty-six thousand, nine hundred seventeen".