25008522 has 144 divisors (see below), whose sum is σ = 69138720. Its totient is φ = 5987520.

The previous prime is 25008517. The next prime is 25008523. The reversal of 25008522 is 22580052.

It is a junction number, because it is equal to n+sod(n) for n = 25008492 and 25008501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25008523) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 675888 + ... + 675924.

It is an arithmetic number, because the mean of its divisors is an integer number (480130).

Almost surely, 2^25008522 is an apocalyptic number.

25008522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 25008522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34569360).

25008522 is an abundant number, since it is smaller than the sum of its proper divisors (44130198).

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

25008522 is a wasteful number, since it uses less digits than its factorization.

25008522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 25008522 is about 5000.8521273879. The cubic root of 25008522 is about 292.4349946857.

Adding to 25008522 its reverse (22580052), we get a palindrome (47588574).

The spelling of 25008522 in words is "twenty-five million, eight thousand, five hundred twenty-two".