253541 has 4 divisors (see below), whose sum is σ = 257184. Its totient is φ = 249900.

The previous prime is 253537. The next prime is 253543. The reversal of 253541 is 145352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 253541 - 2² = 253537 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 (253543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1715 + ... + 1856.

It is an arithmetic number, because the mean of its divisors is an integer number (64296).

2²⁵³⁵⁴¹ is an apocalyptic number.

It is an amenable number.

253541 is a deficient number, since it is larger than the sum of its proper divisors (3643).

253541 is an equidigital number, since it uses as much as digits as its factorization.

253541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3642.

The product of its digits is 600, while the sum is 20.

The square root of 253541 is about 503.5285493396. The cubic root of 253541 is about 63.2920845596.

Adding to 253541 its reverse (145352), we get a palindrome (398893).

The spelling of 253541 in words is "two hundred fifty-three thousand, five hundred forty-one".