25252511 has 4 divisors (see below), whose sum is σ = 25264800. Its totient is φ = 25240224.

The previous prime is 25252457. The next prime is 25252529. The reversal of 25252511 is 11525252.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25252511 - 2¹⁰ = 25251487 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 (25252541) 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, 2231 + ... + 7448.

It is an arithmetic number, because the mean of its divisors is an integer number (6316200).

Almost surely, 2^25252511 is an apocalyptic number.

25252511 is a deficient number, since it is larger than the sum of its proper divisors (12289).

25252511 is an equidigital number, since it uses as much as digits as its factorization.

25252511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12288.

The product of its digits is 1000, while the sum is 23.

The square root of 25252511 is about 5025.1876581875. The cubic root of 25252511 is about 293.3829399862.

Adding to 25252511 its reverse (11525252), we get a palindrome (36777763).

It can be divided in two parts, 2525251 and 1, that added together give a palindrome (2525252).

The spelling of 25252511 in words is "twenty-five million, two hundred fifty-two thousand, five hundred eleven".