25123230 has 96 divisors (see below), whose sum is σ = 73735200. Its totient is φ = 6082560.

The previous prime is 25123211. The next prime is 25123243. The reversal of 25123230 is 3232152.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32286 + ... + 33054.

It is an arithmetic number, because the mean of its divisors is an integer number (768075).

Almost surely, 2^25123230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25123230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36867600).

25123230 is an abundant number, since it is smaller than the sum of its proper divisors (48611970).

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

25123230 is a wasteful number, since it uses less digits than its factorization.

25123230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807 (or 790 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 25123230 is about 5012.3078516787. The cubic root of 25123230 is about 292.8814221960.

Adding to 25123230 its reverse (3232152), we get a palindrome (28355382).

The spelling of 25123230 in words is "twenty-five million, one hundred twenty-three thousand, two hundred thirty".