25122522 has 16 divisors (see below), whose sum is σ = 52889760. Its totient is φ = 7933392.

The previous prime is 25122491. The next prime is 25122527. The reversal of 25122522 is 22522152.

It is a super-2 number, since 2×25122522² = 1262282223280968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25122527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110073 + ... + 110300.

It is an arithmetic number, because the mean of its divisors is an integer number (3305610).

Almost surely, 2^25122522 is an apocalyptic number.

25122522 is an abundant number, since it is smaller than the sum of its proper divisors (27767238).

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

25122522 is a wasteful number, since it uses less digits than its factorization.

25122522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220397.

The product of its digits is 800, while the sum is 21.

The square root of 25122522 is about 5012.2372250324. The cubic root of 25122522 is about 292.8786709309.

Adding to 25122522 its reverse (22522152), we get a palindrome (47644674).

The spelling of 25122522 in words is "twenty-five million, one hundred twenty-two thousand, five hundred twenty-two".