25409088 has 84 divisors (see below), whose sum is σ = 75232768. Its totient is φ = 8190720.

The previous prime is 25409077. The next prime is 25409141. The reversal of 25409088 is 88090452.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17145 + ... + 18567.

Almost surely, 2^25409088 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 25409088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37616384).

25409088 is an abundant number, since it is smaller than the sum of its proper divisors (49823680).

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

25409088 is a wasteful number, since it uses less digits than its factorization.

25409088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472 (or 1459 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 25409088 is about 5040.7428024052. The cubic root of 25409088 is about 293.9880600454.

It can be divided in two parts, 2540 and 9088, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 25409088 in words is "twenty-five million, four hundred nine thousand, eighty-eight".