253663884 has 72 divisors (see below), whose sum is σ = 664569360. Its totient is φ = 81523200.

The previous prime is 253663877. The next prime is 253663909. The reversal of 253663884 is 488366352.

It is a happy number.

253663884 is a `hidden beast` number, since 2 + 5 + 3 + 6 + 638 + 8 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130399 + ... + 132329.

It is an arithmetic number, because the mean of its divisors is an integer number (9230130).

Almost surely, 2^253663884 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253663884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (332284680).

253663884 is an abundant number, since it is smaller than the sum of its proper divisors (410905476).

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

253663884 is a wasteful number, since it uses less digits than its factorization.

253663884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071 (or 2066 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 253663884 is about 15926.8290629365. The cubic root of 253663884 is about 633.0230818983.

The spelling of 253663884 in words is "two hundred fifty-three million, six hundred sixty-three thousand, eight hundred eighty-four".