253763992 has 8 divisors (see below), whose sum is σ = 475807500. Its totient is φ = 126881992.

The previous prime is 253763969. The next prime is 253764029. The reversal of 253763992 is 299367352.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15860242 + ... + 15860257.

Almost surely, 2^253763992 is an apocalyptic number.

It is an amenable number.

253763992 is a deficient number, since it is larger than the sum of its proper divisors (222043508).

253763992 is a wasteful number, since it uses less digits than its factorization.

253763992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31720505 (or 31720501 counting only the distinct ones).

The product of its digits is 612360, while the sum is 46.

The square root of 253763992 is about 15929.9715002884. The cubic root of 253763992 is about 633.1063447567.

The spelling of 253763992 in words is "two hundred fifty-three million, seven hundred sixty-three thousand, nine hundred ninety-two".