253253449 has 2 divisors, whose sum is σ = 253253450. Its totient is φ = 253253448.

The previous prime is 253253431. The next prime is 253253479. The reversal of 253253449 is 944352352.

253253449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 242736400 + 10517049 = 15580^2 + 3243^2 .

It is a cyclic number.

It is not a de Polignac number, because 253253449 - 2⁵ = 253253417 is a prime.

It is not a weakly prime, because it can be changed into another prime (253253479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126626724 + 126626725.

It is an arithmetic number, because the mean of its divisors is an integer number (126626725).

Almost surely, 2^253253449 is an apocalyptic number.

It is an amenable number.

253253449 is a deficient number, since it is larger than the sum of its proper divisors (1).

253253449 is an equidigital number, since it uses as much as digits as its factorization.

253253449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 37.

The square root of 253253449 is about 15913.9388273300. The cubic root of 253253449 is about 632.6814814574.

The spelling of 253253449 in words is "two hundred fifty-three million, two hundred fifty-three thousand, four hundred forty-nine".