253021996 has 12 divisors (see below), whose sum is σ = 443349648. Its totient is φ = 126350672.

The previous prime is 253021991. The next prime is 253022017. The reversal of 253021996 is 699120352.

It is not an unprimeable number, because it can be changed into a prime (253021991) 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, 36496 + ... + 42871.

It is an arithmetic number, because the mean of its divisors is an integer number (36945804).

Almost surely, 2^253021996 is an apocalyptic number.

It is an amenable number.

253021996 is a deficient number, since it is larger than the sum of its proper divisors (190327652).

253021996 is a wasteful number, since it uses less digits than its factorization.

253021996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80168 (or 80166 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 253021996 is about 15906.6651438949. The cubic root of 253021996 is about 632.4886829514.

The spelling of 253021996 in words is "two hundred fifty-three million, twenty-one thousand, nine hundred ninety-six".