25679682403 has 2 divisors, whose sum is σ = 25679682404. Its totient is φ = 25679682402.

The previous prime is 25679682349. The next prime is 25679682419. The reversal of 25679682403 is 30428697652.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25679682403 is a prime.

It is not a weakly prime, because it can be changed into another prime (25679682433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12839841201 + 12839841202.

It is an arithmetic number, because the mean of its divisors is an integer number (12839841202).

Almost surely, 2^25679682403 is an apocalyptic number.

25679682403 is a deficient number, since it is larger than the sum of its proper divisors (1).

25679682403 is an equidigital number, since it uses as much as digits as its factorization.

25679682403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 25679682403 in words is "twenty-five billion, six hundred seventy-nine million, six hundred eighty-two thousand, four hundred three".