25632798187 has 2 divisors, whose sum is σ = 25632798188. Its totient is φ = 25632798186.

The previous prime is 25632798083. The next prime is 25632798199. The reversal of 25632798187 is 78189723652.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25632798187 - 2²³ = 25624409579 is a prime.

It is not a weakly prime, because it can be changed into another prime (25632798887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12816399093 + 12816399094.

It is an arithmetic number, because the mean of its divisors is an integer number (12816399094).

Almost surely, 2^25632798187 is an apocalyptic number.

25632798187 is a deficient number, since it is larger than the sum of its proper divisors (1).

25632798187 is an equidigital number, since it uses as much as digits as its factorization.

25632798187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10160640, while the sum is 58.

The spelling of 25632798187 in words is "twenty-five billion, six hundred thirty-two million, seven hundred ninety-eight thousand, one hundred eighty-seven".