25105080 has 384 divisors, whose sum is σ = 107251200. Its totient is φ = 4561920.

The previous prime is 25105063. The next prime is 25105111. The reversal of 25105080 is 8050152.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1321311 + ... + 1321329.

It is an arithmetic number, because the mean of its divisors is an integer number (279300).

Almost surely, 2^25105080 is an apocalyptic number.

25105080 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 25105080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53625600).

25105080 is an abundant number, since it is smaller than the sum of its proper divisors (82146120).

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

25105080 is a wasteful number, since it uses less digits than its factorization.

25105080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 25105080 is about 5010.4969813383. The cubic root of 25105080 is about 292.8108755553.

The spelling of 25105080 in words is "twenty-five million, one hundred five thousand, eighty".