252476491 has 2 divisors, whose sum is σ = 252476492. Its totient is φ = 252476490.

The previous prime is 252476479. The next prime is 252476519. The reversal of 252476491 is 194674252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252476491 - 2⁵ = 252476459 is a prime.

It is not a weakly prime, because it can be changed into another prime (252471491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126238245 + 126238246.

It is an arithmetic number, because the mean of its divisors is an integer number (126238246).

Almost surely, 2^252476491 is an apocalyptic number.

252476491 is a deficient number, since it is larger than the sum of its proper divisors (1).

252476491 is an equidigital number, since it uses as much as digits as its factorization.

252476491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 252476491 is about 15889.5088344480. The cubic root of 252476491 is about 632.0338160550.

The spelling of 252476491 in words is "two hundred fifty-two million, four hundred seventy-six thousand, four hundred ninety-one".