25623012 has 96 divisors (see below), whose sum is σ = 68124672. Its totient is φ = 7451136.

The previous prime is 25623007. The next prime is 25623023. The reversal of 25623012 is 21032652.

It is a self number, because there is not a number n which added to its sum of digits gives 25623012.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201693 + ... + 201819.

It is an arithmetic number, because the mean of its divisors is an integer number (709632).

Almost surely, 2^25623012 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 25623012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34062336).

25623012 is an abundant number, since it is smaller than the sum of its proper divisors (42501660).

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

25623012 is a wasteful number, since it uses less digits than its factorization.

25623012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 25623012 is about 5061.9178183767. The cubic root of 25623012 is about 294.8108027489.

Adding to 25623012 its reverse (21032652), we get a palindrome (46655664).

The spelling of 25623012 in words is "twenty-five million, six hundred twenty-three thousand, twelve".