25230440430 has 96 divisors (see below), whose sum is σ = 71496655776. Its totient is φ = 6135720192.

The previous prime is 25230440371. The next prime is 25230440437. The reversal of 25230440430 is 3404403252.

25230440430 is a `hidden beast` number, since 25 + 230 + 4 + 404 + 3 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 25230440394 and 25230440403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25230440437) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32797 + ... + 227016.

It is an arithmetic number, because the mean of its divisors is an integer number (744756831).

Almost surely, 2^25230440430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25230440430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35748327888).

25230440430 is an abundant number, since it is smaller than the sum of its proper divisors (46266215346).

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

25230440430 is a wasteful number, since it uses less digits than its factorization.

25230440430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259922 (or 259919 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

Adding to 25230440430 its reverse (3404403252), we get a palindrome (28634843682).

The spelling of 25230440430 in words is "twenty-five billion, two hundred thirty million, four hundred forty thousand, four hundred thirty".