85504099 has 2 divisors, whose sum is σ = 85504100. Its totient is φ = 85504098.

The previous prime is 85504079. The next prime is 85504103. The reversal of 85504099 is 99040558.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85504099 - 2²³ = 77115491 is a prime.

It is not a weakly prime, because it can be changed into another prime (85504079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42752049 + 42752050.

It is an arithmetic number, because the mean of its divisors is an integer number (42752050).

Almost surely, 2^85504099 is an apocalyptic number.

85504099 is a deficient number, since it is larger than the sum of its proper divisors (1).

85504099 is an equidigital number, since it uses as much as digits as its factorization.

85504099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 85504099 is about 9246.8426503321. The cubic root of 85504099 is about 440.5504457399.

The spelling of 85504099 in words is "eighty-five million, five hundred four thousand, ninety-nine".