25231868873 has 2 divisors, whose sum is σ = 25231868874. Its totient is φ = 25231868872.

The previous prime is 25231868867. The next prime is 25231868897. The reversal of 25231868873 is 37886813252.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25140322249 + 91546624 = 158557^2 + 9568^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25231868873 is a prime.

It is not a weakly prime, because it can be changed into another prime (25231868573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12615934436 + 12615934437.

It is an arithmetic number, because the mean of its divisors is an integer number (12615934437).

Almost surely, 2^25231868873 is an apocalyptic number.

It is an amenable number.

25231868873 is a deficient number, since it is larger than the sum of its proper divisors (1).

25231868873 is an equidigital number, since it uses as much as digits as its factorization.

25231868873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3870720, while the sum is 53.

The spelling of 25231868873 in words is "twenty-five billion, two hundred thirty-one million, eight hundred sixty-eight thousand, eight hundred seventy-three".