253602 has 24 divisors (see below), whose sum is σ = 559884. Its totient is φ = 82944.

The previous prime is 253601. The next prime is 253607. The reversal of 253602 is 206352.

It can be written as a sum of positive squares in 2 ways, for example, as 251001 + 2601 = 501^2 + 51^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (253601) 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 11 ways as a sum of consecutive naturals, for example, 1218 + ... + 1410.

2²⁵³⁶⁰² is an apocalyptic number.

253602 is an abundant number, since it is smaller than the sum of its proper divisors (306282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253602 is a wasteful number, since it uses less digits than its factorization.

253602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 253602 is about 503.5891182303. The cubic root of 253602 is about 63.2971600142.

Adding to 253602 its reverse (206352), we get a palindrome (459954).

The spelling of 253602 in words is "two hundred fifty-three thousand, six hundred two".