253256684 has 24 divisors (see below), whose sum is σ = 478130688. Its totient is φ = 116929280.

The previous prime is 253256677. The next prime is 253256743. The reversal of 253256684 is 486652352.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31532 + ... + 38739.

It is an arithmetic number, because the mean of its divisors is an integer number (19922112).

Almost surely, 2^253256684 is an apocalyptic number.

It is an amenable number.

253256684 is a deficient number, since it is larger than the sum of its proper divisors (224874004).

253256684 is a wasteful number, since it uses less digits than its factorization.

253256684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70345 (or 70343 counting only the distinct ones).

The product of its digits is 345600, while the sum is 41.

The square root of 253256684 is about 15914.0404674614. The cubic root of 253256684 is about 632.6841753541.

The spelling of 253256684 in words is "two hundred fifty-three million, two hundred fifty-six thousand, six hundred eighty-four".