253077449 has 4 divisors (see below), whose sum is σ = 253991364. Its totient is φ = 252163536.

The previous prime is 253077443. The next prime is 253077457. The reversal of 253077449 is 944770352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52345225 + 200732224 = 7235^2 + 14168^2 .

It is a cyclic number.

It is not a de Polignac number, because 253077449 - 2²⁰ = 252028873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253077443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456542 + ... + 457095.

It is an arithmetic number, because the mean of its divisors is an integer number (63497841).

Almost surely, 2^253077449 is an apocalyptic number.

It is an amenable number.

253077449 is a deficient number, since it is larger than the sum of its proper divisors (913915).

253077449 is an equidigital number, since it uses as much as digits as its factorization.

253077449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913914.

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 253077449 is about 15908.4081227507. The cubic root of 253077449 is about 632.5348855656.

The spelling of 253077449 in words is "two hundred fifty-three million, seventy-seven thousand, four hundred forty-nine".