25898208 has 96 divisors (see below), whose sum is σ = 82301184. Its totient is φ = 6961152.

The previous prime is 25898167. The next prime is 25898209. The reversal of 25898208 is 80289852.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×25898208² = 1341434355222528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 25898208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25898209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10291 + ... + 12557.

It is an arithmetic number, because the mean of its divisors is an integer number (857304).

Almost surely, 2^25898208 is an apocalyptic number.

25898208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25898208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41150592).

25898208 is an abundant number, since it is smaller than the sum of its proper divisors (56402976).

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

25898208 is a wasteful number, since it uses less digits than its factorization.

25898208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304 (or 2296 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 25898208 is about 5089.0281979962. The cubic root of 25898208 is about 295.8624878671.

It can be divided in two parts, 25898 and 208, that added together give a triangular number (26106 = T₂₂₈).

The spelling of 25898208 in words is "twenty-five million, eight hundred ninety-eight thousand, two hundred eight".