99999051 has 8 divisors (see below), whose sum is σ = 133532880. Its totient is φ = 66565632.

The previous prime is 99999043. The next prime is 99999073. The reversal of 99999051 is 15099999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99999051 - 2³ = 99999043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99998985 and 99999003.

It is not an unprimeable number, because it can be changed into a prime (99999551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22746 + ... + 26783.

It is an arithmetic number, because the mean of its divisors is an integer number (16691610).

Almost surely, 2^99999051 is an apocalyptic number.

99999051 is a deficient number, since it is larger than the sum of its proper divisors (33533829).

99999051 is a wasteful number, since it uses less digits than its factorization.

99999051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50205.

The product of its (nonzero) digits is 295245, while the sum is 51.

The square root of 99999051 is about 9999.9525498874. The cubic root of 99999051 is about 464.1574150674.

The spelling of 99999051 in words is "ninety-nine million, nine hundred ninety-nine thousand, fifty-one".