49999115 has 4 divisors (see below), whose sum is σ = 59998944. Its totient is φ = 39999288.

The previous prime is 49999111. The next prime is 49999121. The reversal of 49999115 is 51199994.

It is a happy number.

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 49999115 - 2² = 49999111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49999115.

It is not an unprimeable number, because it can be changed into a prime (49999111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4999907 + ... + 4999916.

It is an arithmetic number, because the mean of its divisors is an integer number (14999736).

Almost surely, 2^49999115 is an apocalyptic number.

49999115 is a deficient number, since it is larger than the sum of its proper divisors (9999829).

49999115 is an equidigital number, since it uses as much as digits as its factorization.

49999115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9999828.

The product of its digits is 131220, while the sum is 47.

The square root of 49999115 is about 7071.0052326384. The cubic root of 49999115 is about 368.4009762726.

The spelling of 49999115 in words is "forty-nine million, nine hundred ninety-nine thousand, one hundred fifteen".