49986619 has 2 divisors, whose sum is σ = 49986620. Its totient is φ = 49986618.

The previous prime is 49986581. The next prime is 49986641. The reversal of 49986619 is 91668994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49986619 - 2¹⁵ = 49953851 is a prime.

It is a super-2 number, since 2×49986619² = 4997324158102322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49986649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24993309 + 24993310.

It is an arithmetic number, because the mean of its divisors is an integer number (24993310).

Almost surely, 2^49986619 is an apocalyptic number.

49986619 is a deficient number, since it is larger than the sum of its proper divisors (1).

49986619 is an equidigital number, since it uses as much as digits as its factorization.

49986619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 52.

The square root of 49986619 is about 7070.1215689690. The cubic root of 49986619 is about 368.3702829149.

It can be divided in two parts, 49986 and 619, that added together give a palindrome (50605).

The spelling of 49986619 in words is "forty-nine million, nine hundred eighty-six thousand, six hundred nineteen".