49867219 has 2 divisors, whose sum is σ = 49867220. Its totient is φ = 49867218.

The previous prime is 49867217. The next prime is 49867241. The reversal of 49867219 is 91276894.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49867219 - 2¹ = 49867217 is a prime.

It is a super-2 number, since 2×49867219² = 4973479061587922, which contains 22 as substring.

Together with 49867217, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49867217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24933609 + 24933610.

It is an arithmetic number, because the mean of its divisors is an integer number (24933610).

Almost surely, 2^49867219 is an apocalyptic number.

49867219 is a deficient number, since it is larger than the sum of its proper divisors (1).

49867219 is an equidigital number, since it uses as much as digits as its factorization.

49867219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 46.

The square root of 49867219 is about 7061.6725355966. The cubic root of 49867219 is about 368.0767478358.

It can be divided in two parts, 49867 and 219, that added together give a triangular number (50086 = T₃₁₆).

The spelling of 49867219 in words is "forty-nine million, eight hundred sixty-seven thousand, two hundred nineteen".