25252522 has 4 divisors (see below), whose sum is σ = 37878786. Its totient is φ = 12626260.

The previous prime is 25252457. The next prime is 25252529. The reversal of 25252522 is 22525252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22193521 + 3059001 = 4711^2 + 1749^2 .

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 as a sum of consecutive naturals, namely, 6313129 + ... + 6313132.

Almost surely, 2^25252522 is an apocalyptic number.

25252522 is a deficient number, since it is larger than the sum of its proper divisors (12626264).

25252522 is a wasteful number, since it uses less digits than its factorization.

25252522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12626263.

The product of its digits is 4000, while the sum is 25.

The square root of 25252522 is about 5025.1887526739. The cubic root of 25252522 is about 293.3829825854.

Adding to 25252522 its reverse (22525252), we get a palindrome (47777774).

The spelling of 25252522 in words is "twenty-five million, two hundred fifty-two thousand, five hundred twenty-two".