253982489 has 2 divisors, whose sum is σ = 253982490. Its totient is φ = 253982488.

The previous prime is 253982483. The next prime is 253982503. The reversal of 253982489 is 984289352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198330889 + 55651600 = 14083^2 + 7460^2 .

It is a cyclic number.

It is not a de Polignac number, because 253982489 - 2⁸ = 253982233 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (253982483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126991244 + 126991245.

It is an arithmetic number, because the mean of its divisors is an integer number (126991245).

Almost surely, 2^253982489 is an apocalyptic number.

It is an amenable number.

253982489 is a deficient number, since it is larger than the sum of its proper divisors (1).

253982489 is an equidigital number, since it uses as much as digits as its factorization.

253982489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 50.

The square root of 253982489 is about 15936.8280721102. The cubic root of 253982489 is about 633.2879993097.

The spelling of 253982489 in words is "two hundred fifty-three million, nine hundred eighty-two thousand, four hundred eighty-nine".