25232004 has 72 divisors (see below), whose sum is σ = 73382400. Its totient is φ = 7160832.

The previous prime is 25231993. The next prime is 25232027. The reversal of 25232004 is 40023252.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55972 + ... + 56420.

It is an arithmetic number, because the mean of its divisors is an integer number (1019200).

Almost surely, 2^25232004 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 25232004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36691200).

25232004 is an abundant number, since it is smaller than the sum of its proper divisors (48150396).

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

25232004 is a wasteful number, since it uses less digits than its factorization.

25232004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689 (or 684 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 25232004 is about 5023.1468224610. The cubic root of 25232004 is about 293.3035019020.

Adding to 25232004 its reverse (40023252), we get a palindrome (65255256).

The spelling of 25232004 in words is "twenty-five million, two hundred thirty-two thousand, four".