253915 has 8 divisors (see below), whose sum is σ = 312048. Its totient is φ = 198240.

The previous prime is 253909. The next prime is 253919. The reversal of 253915 is 519352.

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

It is not a de Polignac number, because 253915 - 2³ = 253907 is a prime.

It is a Duffinian number.

253915 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 253915.

It is not an unprimeable number, because it can be changed into a prime (253919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376 + ... + 805.

It is an arithmetic number, because the mean of its divisors is an integer number (39006).

2²⁵³⁹¹⁵ is an apocalyptic number.

253915 is a deficient number, since it is larger than the sum of its proper divisors (58133).

253915 is a wasteful number, since it uses less digits than its factorization.

253915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229.

The product of its digits is 1350, while the sum is 25.

The square root of 253915 is about 503.8997916253. The cubic root of 253915 is about 63.3231901269.

The spelling of 253915 in words is "two hundred fifty-three thousand, nine hundred fifteen".