253775 has 6 divisors (see below), whose sum is σ = 314712. Its totient is φ = 203000.

The previous prime is 253769. The next prime is 253777. The reversal of 253775 is 577352.

It is a de Polignac number, because none of the positive numbers 2^k-253775 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 253775.

It is not an unprimeable number, because it can be changed into a prime (253777) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5051 + ... + 5100.

It is an arithmetic number, because the mean of its divisors is an integer number (52452).

2²⁵³⁷⁷⁵ is an apocalyptic number.

253775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

253775 is a deficient number, since it is larger than the sum of its proper divisors (60937).

253775 is a wasteful number, since it uses less digits than its factorization.

253775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10161 (or 10156 counting only the distinct ones).

The product of its digits is 7350, while the sum is 29.

The square root of 253775 is about 503.7608559624. The cubic root of 253775 is about 63.3115499108.

The spelling of 253775 in words is "two hundred fifty-three thousand, seven hundred seventy-five".