253648988 has 12 divisors (see below), whose sum is σ = 444042312. Its totient is φ = 126779760.

The previous prime is 253648973. The next prime is 253648999. The reversal of 253648988 is 889846352.

253648988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×253648988² = 128675618226848288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3806 + ... + 22842.

It is an arithmetic number, because the mean of its divisors is an integer number (37003526).

Almost surely, 2^253648988 is an apocalyptic number.

It is an amenable number.

253648988 is a deficient number, since it is larger than the sum of its proper divisors (190393324).

253648988 is a wasteful number, since it uses less digits than its factorization.

253648988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22372 (or 22370 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 53.

The square root of 253648988 is about 15926.3614174739. The cubic root of 253648988 is about 633.0106905713.

The spelling of 253648988 in words is "two hundred fifty-three million, six hundred forty-eight thousand, nine hundred eighty-eight".