253783880 has 32 divisors (see below), whose sum is σ = 652587840. Its totient is φ = 87011520.

The previous prime is 253783877. The next prime is 253783883. The reversal of 253783880 is 88387352.

It is an interprime number because it is at equal distance from previous prime (253783877) and next prime (253783883).

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (253783883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452906 + ... + 453465.

It is an arithmetic number, because the mean of its divisors is an integer number (20393370).

Almost surely, 2^253783880 is an apocalyptic number.

253783880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253783880 is an abundant number, since it is smaller than the sum of its proper divisors (398803960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253783880 is a wasteful number, since it uses less digits than its factorization.

253783880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906389 (or 906385 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 253783880 is about 15930.5957201857. The cubic root of 253783880 is about 633.1228836018.

The spelling of 253783880 in words is "two hundred fifty-three million, seven hundred eighty-three thousand, eight hundred eighty".