253545 has 8 divisors (see below), whose sum is σ = 405696. Its totient is φ = 135216.

The previous prime is 253543. The next prime is 253553. The reversal of 253545 is 545352.

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

It is not a de Polignac number, because 253545 - 2¹ = 253543 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 253545.

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 7 ways as a sum of consecutive naturals, for example, 8437 + ... + 8466.

It is an arithmetic number, because the mean of its divisors is an integer number (50712).

2²⁵³⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

253545 is a deficient number, since it is larger than the sum of its proper divisors (152151).

253545 is a wasteful number, since it uses less digits than its factorization.

253545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16911.

The product of its digits is 3000, while the sum is 24.

The square root of 253545 is about 503.5325212933. The cubic root of 253545 is about 63.2924174012.

Adding to 253545 its reverse (545352), we get a palindrome (798897).

It can be divided in two parts, 25 and 3545, that added together give a triangular number (3570 = T₈₄).

The spelling of 253545 in words is "two hundred fifty-three thousand, five hundred forty-five".