25361856 has 112 divisors (see below), whose sum is σ = 80365600. Its totient is φ = 7796736.

The previous prime is 25361837. The next prime is 25361887. The reversal of 25361856 is 65816352.

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

It is a self number, because there is not a number n which added to its sum of digits gives 25361856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21900 + ... + 23028.

It is an arithmetic number, because the mean of its divisors is an integer number (717550).

Almost surely, 2^25361856 is an apocalyptic number.

25361856 is a gapful number since it is divisible by the number (26) 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 25361856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40182800).

25361856 is an abundant number, since it is smaller than the sum of its proper divisors (55003744).

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

25361856 is a wasteful number, since it uses less digits than its factorization.

25361856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163 (or 1147 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 25361856 is about 5036.0555993754. The cubic root of 25361856 is about 293.8057859344.

The spelling of 25361856 in words is "twenty-five million, three hundred sixty-one thousand, eight hundred fifty-six".