253288 has 16 divisors (see below), whose sum is σ = 542880. Its totient is φ = 108528.

The previous prime is 253273. The next prime is 253307. The reversal of 253288 is 882352.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

253288 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2206 + ... + 2317.

It is an arithmetic number, because the mean of its divisors is an integer number (33930).

2²⁵³²⁸⁸ is an apocalyptic number.

253288 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

253288 is an abundant number, since it is smaller than the sum of its proper divisors (289592).

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

253288 is a wasteful number, since it uses less digits than its factorization.

253288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4536 (or 4532 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 253288 is about 503.2772595697. The cubic root of 253288 is about 63.2710252087.

The spelling of 253288 in words is "two hundred fifty-three thousand, two hundred eighty-eight".