49511719 has 2 divisors, whose sum is σ = 49511720. Its totient is φ = 49511718.

The previous prime is 49511717. The next prime is 49511731. The reversal of 49511719 is 91711594.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49511719 - 2¹ = 49511717 is a prime.

It is a super-2 number, since 2×49511719² = 4902820636669922, which contains 22 as substring.

Together with 49511717, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49511717) 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, 24755859 + 24755860.

It is an arithmetic number, because the mean of its divisors is an integer number (24755860).

Almost surely, 2^49511719 is an apocalyptic number.

49511719 is the 4063-rd hex number.

49511719 is a deficient number, since it is larger than the sum of its proper divisors (1).

49511719 is an equidigital number, since it uses as much as digits as its factorization.

49511719 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11340, while the sum is 37.

The square root of 49511719 is about 7036.4564235132. The cubic root of 49511719 is about 367.1999964203.

It can be divided in two parts, 4951 and 1719, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 49511719 in words is "forty-nine million, five hundred eleven thousand, seven hundred nineteen".