25235726426731 has 2 divisors, whose sum is σ = 25235726426732. Its totient is φ = 25235726426730.

The previous prime is 25235726426627. The next prime is 25235726426821. The reversal of 25235726426731 is 13762462753252.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25235726426731 is a prime.

It is a super-2 number, since 2×25235726426731² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25235726427731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12617863213365 + 12617863213366.

It is an arithmetic number, because the mean of its divisors is an integer number (12617863213366).

Almost surely, 2^{25235726426731} is an apocalyptic number.

25235726426731 is a deficient number, since it is larger than the sum of its proper divisors (1).

25235726426731 is an equidigital number, since it uses as much as digits as its factorization.

25235726426731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25401600, while the sum is 55.

The spelling of 25235726426731 in words is "twenty-five trillion, two hundred thirty-five billion, seven hundred twenty-six million, four hundred twenty-six thousand, seven hundred thirty-one".