22525008 has 80 divisors (see below), whose sum is σ = 65251776. Its totient is φ = 6635520.

The previous prime is 22525001. The next prime is 22525037. The reversal of 22525008 is 80052522.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22525001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18960 + ... + 20112.

Almost surely, 2^22525008 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 22525008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32625888).

22525008 is an abundant number, since it is smaller than the sum of its proper divisors (42726768).

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

22525008 is a wasteful number, since it uses less digits than its factorization.

22525008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212 (or 1206 counting only the distinct ones).

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

The square root of 22525008 is about 4746.0518328396. The cubic root of 22525008 is about 282.4153629555.

It can be divided in two parts, 2252 and 5008, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 22525008 in words is "twenty-two million, five hundred twenty-five thousand, eight".