25830555827 has 2 divisors, whose sum is σ = 25830555828. Its totient is φ = 25830555826.

The previous prime is 25830555797. The next prime is 25830555851. The reversal of 25830555827 is 72855503852.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25830555827 - 2²⁰ = 25829507251 is a prime.

It is a super-2 number, since 2×25830555827² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25830551827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12915277913 + 12915277914.

It is an arithmetic number, because the mean of its divisors is an integer number (12915277914).

Almost surely, 2^25830555827 is an apocalyptic number.

25830555827 is a deficient number, since it is larger than the sum of its proper divisors (1).

25830555827 is an equidigital number, since it uses as much as digits as its factorization.

25830555827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360000, while the sum is 50.

The spelling of 25830555827 in words is "twenty-five billion, eight hundred thirty million, five hundred fifty-five thousand, eight hundred twenty-seven".