25620221411 has 2 divisors, whose sum is σ = 25620221412. Its totient is φ = 25620221410.

The previous prime is 25620221383. The next prime is 25620221423. The reversal of 25620221411 is 11412202652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25620221411 - 2³⁴ = 8440352227 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (25620221441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12810110705 + 12810110706.

It is an arithmetic number, because the mean of its divisors is an integer number (12810110706).

Almost surely, 2^25620221411 is an apocalyptic number.

25620221411 is a deficient number, since it is larger than the sum of its proper divisors (1).

25620221411 is an equidigital number, since it uses as much as digits as its factorization.

25620221411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 26.

The spelling of 25620221411 in words is "twenty-five billion, six hundred twenty million, two hundred twenty-one thousand, four hundred eleven".