25400390611 has 2 divisors, whose sum is σ = 25400390612. Its totient is φ = 25400390610.

The previous prime is 25400390579. The next prime is 25400390627. The reversal of 25400390611 is 11609300452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25400390611 - 2⁵ = 25400390579 is a prime.

It is not a weakly prime, because it can be changed into another prime (25400390641) 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, 12700195305 + 12700195306.

It is an arithmetic number, because the mean of its divisors is an integer number (12700195306).

Almost surely, 2^25400390611 is an apocalyptic number.

25400390611 is a deficient number, since it is larger than the sum of its proper divisors (1).

25400390611 is an equidigital number, since it uses as much as digits as its factorization.

25400390611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 25400390611 in words is "twenty-five billion, four hundred million, three hundred ninety thousand, six hundred eleven".