49986019 has 2 divisors, whose sum is σ = 49986020. Its totient is φ = 49986018.

The previous prime is 49985993. The next prime is 49986029. The reversal of 49986019 is 91068994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49986019 - 2¹¹ = 49983971 is a prime.

It is a super-2 number, since 2×49986019² = 4997204190936722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49986019.

It is not a weakly prime, because it can be changed into another prime (49986029) 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, 24993009 + 24993010.

It is an arithmetic number, because the mean of its divisors is an integer number (24993010).

Almost surely, 2^49986019 is an apocalyptic number.

49986019 is a deficient number, since it is larger than the sum of its proper divisors (1).

49986019 is an equidigital number, since it uses as much as digits as its factorization.

49986019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 49986019 is about 7070.0791367565. The cubic root of 49986019 is about 368.3688090335.

The spelling of 49986019 in words is "forty-nine million, nine hundred eighty-six thousand, nineteen".