25085880 has 96 divisors (see below), whose sum is σ = 86346000. Its totient is φ = 6294528.

The previous prime is 25085873. The next prime is 25085881. The reversal of 25085880 is 8858052.

25085880 = 520² + 521² + ... + 599².

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25085881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4071 + ... + 8169.

Almost surely, 2^25085880 is an apocalyptic number.

25085880 is a gapful number since it is divisible by the number (20) 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 25085880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43173000).

25085880 is an abundant number, since it is smaller than the sum of its proper divisors (61260120).

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

25085880 is a wasteful number, since it uses less digits than its factorization.

25085880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4133 (or 4126 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The square root of 25085880 is about 5008.5806372664. The cubic root of 25085880 is about 292.7362106851.

The spelling of 25085880 in words is "twenty-five million, eighty-five thousand, eight hundred eighty".