9999055 has 16 divisors (see below), whose sum is σ = 13543200. Its totient is φ = 7020160.

The previous prime is 9999053. The next prime is 9999071. The reversal of 9999055 is 5509999.

9999055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9999055 - 2¹ = 9999053 is a prime.

It is a super-2 number, since 2×9999055² = 199962201786050, which contains 22 as substring.

9999055 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 9998996 and 9999014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1540 + ... + 4729.

It is an arithmetic number, because the mean of its divisors is an integer number (846450).

Almost surely, 2^9999055 is an apocalyptic number.

9999055 is a deficient number, since it is larger than the sum of its proper divisors (3544145).

9999055 is a wasteful number, since it uses less digits than its factorization.

9999055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6314.

The product of its (nonzero) digits is 164025, while the sum is 46.

The square root of 9999055 is about 3162.1282390188. The cubic root of 9999055 is about 215.4366823201.

The spelling of 9999055 in words is "nine million, nine hundred ninety-nine thousand, fifty-five".