253090 has 8 divisors (see below), whose sum is σ = 455580. Its totient is φ = 101232.

The previous prime is 253081. The next prime is 253103. The reversal of 253090 is 90352.

It can be written as a sum of positive squares in 2 ways, for example, as 253009 + 81 = 503^2 + 9^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

253090 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12645 + ... + 12664.

2²⁵³⁰⁹⁰ is an apocalyptic number.

253090 is a deficient number, since it is larger than the sum of its proper divisors (202490).

253090 is a wasteful number, since it uses less digits than its factorization.

253090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25316.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 253090 is about 503.0805104553. The cubic root of 253090 is about 63.2545341935.

The spelling of 253090 in words is "two hundred fifty-three thousand, ninety".