25928236031 has 2 divisors, whose sum is σ = 25928236032. Its totient is φ = 25928236030.

The previous prime is 25928236021. The next prime is 25928236051. The reversal of 25928236031 is 13063282952.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25928236031 is a prime.

It is a super-2 number, since 2×25928236031² (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 25928236031.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25928236021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12964118015 + 12964118016.

It is an arithmetic number, because the mean of its divisors is an integer number (12964118016).

Almost surely, 2^25928236031 is an apocalyptic number.

25928236031 is a deficient number, since it is larger than the sum of its proper divisors (1).

25928236031 is an equidigital number, since it uses as much as digits as its factorization.

25928236031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 25928236031 in words is "twenty-five billion, nine hundred twenty-eight million, two hundred thirty-six thousand, thirty-one".