25522008 has 64 divisors (see below), whose sum is σ = 67223520. Its totient is φ = 8064000.

The previous prime is 25521983. The next prime is 25522033. The reversal of 25522008 is 80022552.

It is an interprime number because it is at equal distance from previous prime (25521983) and next prime (25522033).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36058 + ... + 36758.

Almost surely, 2^25522008 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 25522008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33611760).

25522008 is an abundant number, since it is smaller than the sum of its proper divisors (41701512).

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

25522008 is a wasteful number, since it uses less digits than its factorization.

25522008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788 (or 784 counting only the distinct ones).

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

The square root of 25522008 is about 5051.9311159199. The cubic root of 25522008 is about 294.4229185746.

It can be divided in two parts, 2552 and 2008, that added together give a triangular number (4560 = T₉₅).

The spelling of 25522008 in words is "twenty-five million, five hundred twenty-two thousand, eight".