25232230013 has 4 divisors (see below), whose sum is σ = 26102306940. Its totient is φ = 24362153088.

The previous prime is 25232230003. The next prime is 25232230019. The reversal of 25232230013 is 31003223252.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10787315044 + 14444914969 = 103862^2 + 120187^2 .

It is a cyclic number.

It is not a de Polignac number, because 25232230013 - 2¹⁸ = 25231967869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25232230019) 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, 435038420 + ... + 435038477.

It is an arithmetic number, because the mean of its divisors is an integer number (6525576735).

Almost surely, 2^25232230013 is an apocalyptic number.

It is an amenable number.

25232230013 is a deficient number, since it is larger than the sum of its proper divisors (870076927).

25232230013 is an equidigital number, since it uses as much as digits as its factorization.

25232230013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870076926.

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 25232230013 its reverse (31003223252), we get a palindrome (56235453265).

The spelling of 25232230013 in words is "twenty-five billion, two hundred thirty-two million, two hundred thirty thousand, thirteen".