25603330231 has 2 divisors, whose sum is σ = 25603330232. Its totient is φ = 25603330230.

The previous prime is 25603330217. The next prime is 25603330237. The reversal of 25603330231 is 13203330652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25603330231 - 2¹⁵ = 25603297463 is a prime.

It is a super-2 number, since 2×25603330231² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25603330231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25603330237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12801665115 + 12801665116.

It is an arithmetic number, because the mean of its divisors is an integer number (12801665116).

Almost surely, 2^25603330231 is an apocalyptic number.

25603330231 is a deficient number, since it is larger than the sum of its proper divisors (1).

25603330231 is an equidigital number, since it uses as much as digits as its factorization.

25603330231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 28.

Adding to 25603330231 its reverse (13203330652), we get a palindrome (38806660883).

The spelling of 25603330231 in words is "twenty-five billion, six hundred three million, three hundred thirty thousand, two hundred thirty-one".