253667399 has 2 divisors, whose sum is σ = 253667400. Its totient is φ = 253667398.

The previous prime is 253667371. The next prime is 253667431. The reversal of 253667399 is 993766352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253667399 - 2⁸ = 253667143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253667329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126833699 + 126833700.

It is an arithmetic number, because the mean of its divisors is an integer number (126833700).

Almost surely, 2^253667399 is an apocalyptic number.

253667399 is a deficient number, since it is larger than the sum of its proper divisors (1).

253667399 is an equidigital number, since it uses as much as digits as its factorization.

253667399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1837080, while the sum is 50.

The square root of 253667399 is about 15926.9394109477. The cubic root of 253667399 is about 633.0260058014.

The spelling of 253667399 in words is "two hundred fifty-three million, six hundred sixty-seven thousand, three hundred ninety-nine".