9905051 has 4 divisors (see below), whose sum is σ = 10666992. Its totient is φ = 9143112.

The previous prime is 9905017. The next prime is 9905053. The reversal of 9905051 is 1505099.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9905051 - 2⁶ = 9904987 is a prime.

It is a super-2 number, since 2×9905051² = 196220070625202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9905053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380951 + ... + 380976.

It is an arithmetic number, because the mean of its divisors is an integer number (2666748).

Almost surely, 2^9905051 is an apocalyptic number.

9905051 is a deficient number, since it is larger than the sum of its proper divisors (761941).

9905051 is a wasteful number, since it uses less digits than its factorization.

9905051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761940.

The product of its (nonzero) digits is 2025, while the sum is 29.

The square root of 9905051 is about 3147.2290987470. The cubic root of 9905051 is about 214.7594280486.

The spelling of 9905051 in words is "nine million, nine hundred five thousand, fifty-one".