25252524 has 72 divisors (see below), whose sum is σ = 71303232. Its totient is φ = 7469280.

The previous prime is 25252457. The next prime is 25252529. The reversal of 25252524 is 42525252.

It is not an unprimeable number, because it can be changed into a prime (25252529) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16287 + ... + 17769.

Almost surely, 2^25252524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25252524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35651616).

25252524 is an abundant number, since it is smaller than the sum of its proper divisors (46050708).

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

25252524 is a wasteful number, since it uses less digits than its factorization.

25252524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1547 (or 1542 counting only the distinct ones).

The product of its digits is 8000, while the sum is 27.

The square root of 25252524 is about 5025.1889516714. The cubic root of 25252524 is about 293.3829903307.

Adding to 25252524 its reverse (42525252), we get a palindrome (67777776).

The spelling of 25252524 in words is "twenty-five million, two hundred fifty-two thousand, five hundred twenty-four".