252525 has 48 divisors (see below), whose sum is σ = 527744. Its totient is φ = 103680.

The previous prime is 252509. The next prime is 252533. The reversal of 252525 is 525252.

It is not a de Polignac number, because 252525 - 2⁴ = 252509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an alternating number because its digits alternate between even and odd.

252525 is an undulating number in base 10.

252525 is a modest number, since divided by 2525 gives 25 as remainder.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 252525.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6807 + ... + 6843.

2²⁵²⁵²⁵ is an apocalyptic number.

252525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252525 is an abundant number, since it is smaller than the sum of its proper divisors (275219).

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

252525 is a wasteful number, since it uses less digits than its factorization.

252525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70 (or 65 counting only the distinct ones).

The product of its digits is 1000, while the sum is 21.

The square root of 252525 is about 502.5186563701. The cubic root of 252525 is about 63.2074291592.

Adding to 252525 its reverse (525252), we get a palindrome (777777).

It can be divided in two parts, 252 and 525, that added together give a palindrome (777).

The spelling of 252525 in words is "two hundred fifty-two thousand, five hundred twenty-five".