10505899 has 2 divisors, whose sum is σ = 10505900. Its totient is φ = 10505898.

The previous prime is 10505893. The next prime is 10505909. The reversal of 10505899 is 99850501.

10505899 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10505899 - 2⁹ = 10505387 is a prime.

It is a super-2 number, since 2×10505899² = 220747827596402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10505893) 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, 5252949 + 5252950.

It is an arithmetic number, because the mean of its divisors is an integer number (5252950).

Almost surely, 2^10505899 is an apocalyptic number.

10505899 is a deficient number, since it is larger than the sum of its proper divisors (1).

10505899 is an equidigital number, since it uses as much as digits as its factorization.

10505899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 37.

The square root of 10505899 is about 3241.2804568565. The cubic root of 10505899 is about 219.0169569100.

The spelling of 10505899 in words is "ten million, five hundred five thousand, eight hundred ninety-nine".