25232005423 has 4 divisors (see below), whose sum is σ = 25271369568. Its totient is φ = 25192641280.

The previous prime is 25232005417. The next prime is 25232005433. The reversal of 25232005423 is 32450023252.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25232005423 - 2⁵ = 25232005391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25232005391 and 25232005400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25232005433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19681111 + ... + 19682392.

It is an arithmetic number, because the mean of its divisors is an integer number (6317842392).

Almost surely, 2^25232005423 is an apocalyptic number.

25232005423 is a deficient number, since it is larger than the sum of its proper divisors (39364145).

25232005423 is an equidigital number, since it uses as much as digits as its factorization.

25232005423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39364144.

The product of its (nonzero) digits is 14400, while the sum is 28.

Adding to 25232005423 its reverse (32450023252), we get a palindrome (57682028675).

The spelling of 25232005423 in words is "twenty-five billion, two hundred thirty-two million, five thousand, four hundred twenty-three".