25423135230 has 16 divisors (see below), whose sum is σ = 61015524624. Its totient is φ = 6779502720.

The previous prime is 25423135219. The next prime is 25423135279. The reversal of 25423135230 is 3253132452.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 847437841 = 25423135230 / (2 + 5 + 4 + 2 + 3 + 1 + 3 + 5 + 2 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 423718891 + ... + 423718950.

It is an arithmetic number, because the mean of its divisors is an integer number (3813470289).

Almost surely, 2^25423135230 is an apocalyptic number.

25423135230 is an abundant number, since it is smaller than the sum of its proper divisors (35592389394).

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

25423135230 is a wasteful number, since it uses less digits than its factorization.

25423135230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847437851.

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 25423135230 its reverse (3253132452), we get a palindrome (28676267682).

The spelling of 25423135230 in words is "twenty-five billion, four hundred twenty-three million, one hundred thirty-five thousand, two hundred thirty".