253664492 has 6 divisors (see below), whose sum is σ = 443912868. Its totient is φ = 126832244.

The previous prime is 253664491. The next prime is 253664501. The reversal of 253664492 is 294466352.

It is not an unprimeable number, because it can be changed into a prime (253664491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31708058 + ... + 31708065.

It is an arithmetic number, because the mean of its divisors is an integer number (73985478).

Almost surely, 2^253664492 is an apocalyptic number.

It is an amenable number.

253664492 is a deficient number, since it is larger than the sum of its proper divisors (190248376).

253664492 is a wasteful number, since it uses less digits than its factorization.

253664492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63416127 (or 63416125 counting only the distinct ones).

The product of its digits is 311040, while the sum is 41.

The square root of 253664492 is about 15926.8481502148. The cubic root of 253664492 is about 633.0235876565.

The spelling of 253664492 in words is "two hundred fifty-three million, six hundred sixty-four thousand, four hundred ninety-two".