25423257230 has 128 divisors (see below), whose sum is σ = 57778790400. Its totient is φ = 7852927104.

The previous prime is 25423257229. The next prime is 25423257239. The reversal of 25423257230 is 3275232452.

25423257230 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25423257239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5473289 + ... + 5477931.

It is an arithmetic number, because the mean of its divisors is an integer number (451396800).

Almost surely, 2^25423257230 is an apocalyptic number.

25423257230 is an abundant number, since it is smaller than the sum of its proper divisors (32355533170).

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

25423257230 is a wasteful number, since it uses less digits than its factorization.

25423257230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4878.

The product of its (nonzero) digits is 100800, while the sum is 35.

Adding to 25423257230 its reverse (3275232452), we get a palindrome (28698489682).

The spelling of 25423257230 in words is "twenty-five billion, four hundred twenty-three million, two hundred fifty-seven thousand, two hundred thirty".