253355447 has 2 divisors, whose sum is σ = 253355448. Its totient is φ = 253355446.

The previous prime is 253355413. The next prime is 253355491. The reversal of 253355447 is 744553352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253355447 - 2⁸ = 253355191 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 253355447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253355647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126677723 + 126677724.

It is an arithmetic number, because the mean of its divisors is an integer number (126677724).

Almost surely, 2^253355447 is an apocalyptic number.

253355447 is a deficient number, since it is larger than the sum of its proper divisors (1).

253355447 is an equidigital number, since it uses as much as digits as its factorization.

253355447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 252000, while the sum is 38.

The square root of 253355447 is about 15917.1431796036. The cubic root of 253355447 is about 632.7664076903.

The spelling of 253355447 in words is "two hundred fifty-three million, three hundred fifty-five thousand, four hundred forty-seven".