25583012 has 48 divisors (see below), whose sum is σ = 55977600. Its totient is φ = 9960192.

The previous prime is 25582957. The next prime is 25583023. The reversal of 25583012 is 21038552.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 23864 + ... + 24912.

It is an arithmetic number, because the mean of its divisors is an integer number (1166200).

Almost surely, 2^25583012 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 25583012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27988800).

25583012 is an abundant number, since it is smaller than the sum of its proper divisors (30394588).

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

25583012 is a wasteful number, since it uses less digits than its factorization.

25583012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140 (or 1138 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 25583012 is about 5057.9652035181. The cubic root of 25583012 is about 294.6573134582.

The spelling of 25583012 in words is "twenty-five million, five hundred eighty-three thousand, twelve".