49986605 has 4 divisors (see below), whose sum is σ = 59983932. Its totient is φ = 39989280.

The previous prime is 49986581. The next prime is 49986619. The reversal of 49986605 is 50668994.

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

It can be written as a sum of positive squares in 2 ways, for example, as 29311396 + 20675209 = 5414^2 + 4547^2 .

It is a de Polignac number, because none of the positive numbers 2^k-49986605 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 49986605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4998656 + ... + 4998665.

It is an arithmetic number, because the mean of its divisors is an integer number (14995983).

Almost surely, 2^49986605 is an apocalyptic number.

It is an amenable number.

49986605 is a deficient number, since it is larger than the sum of its proper divisors (9997327).

49986605 is an equidigital number, since it uses as much as digits as its factorization.

49986605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9997326.

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 49986605 is about 7070.1205788869. The cubic root of 49986605 is about 368.3702485245.

The spelling of 49986605 in words is "forty-nine million, nine hundred eighty-six thousand, six hundred five".