253788 has 12 divisors (see below), whose sum is σ = 592200. Its totient is φ = 84592.

The previous prime is 253787. The next prime is 253789. The reversal of 253788 is 887352.

It is an interprime number because it is at equal distance from previous prime (253787) and next prime (253789).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253787) 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 3 ways as a sum of consecutive naturals, for example, 10563 + ... + 10586.

It is an arithmetic number, because the mean of its divisors is an integer number (49350).

2²⁵³⁷⁸⁸ is an apocalyptic number.

It is an amenable number.

253788 is an abundant number, since it is smaller than the sum of its proper divisors (338412).

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

253788 is a wasteful number, since it uses less digits than its factorization.

253788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21156 (or 21154 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 253788 is about 503.7737587449. The cubic root of 253788 is about 63.3126309682.

The spelling of 253788 in words is "two hundred fifty-three thousand, seven hundred eighty-eight".