253465 has 8 divisors (see below), whose sum is σ = 307008. Its totient is φ = 200880.

The previous prime is 253447. The next prime is 253469. The reversal of 253465 is 564352.

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

It is not a de Polignac number, because 253465 - 2⁵ = 253433 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253469) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 660 + ... + 970.

It is an arithmetic number, because the mean of its divisors is an integer number (38376).

2²⁵³⁴⁶⁵ is an apocalyptic number.

It is an amenable number.

253465 is a deficient number, since it is larger than the sum of its proper divisors (53543).

253465 is a wasteful number, since it uses less digits than its factorization.

253465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479.

The product of its digits is 3600, while the sum is 25.

The square root of 253465 is about 503.4530762643. The cubic root of 253465 is about 63.2857599031.

The spelling of 253465 in words is "two hundred fifty-three thousand, four hundred sixty-five".