49951219 has 4 divisors (see below), whose sum is σ = 52889544. Its totient is φ = 47012896.

The previous prime is 49951169. The next prime is 49951241. The reversal of 49951219 is 91215994.

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

It is a cyclic number.

It is not a de Polignac number, because 49951219 - 2¹¹ = 49949171 is a prime.

It is a super-2 number, since 2×49951219² = 4990248559171922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49951249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1469137 + ... + 1469170.

It is an arithmetic number, because the mean of its divisors is an integer number (13222386).

Almost surely, 2^49951219 is an apocalyptic number.

49951219 is a deficient number, since it is larger than the sum of its proper divisors (2938325).

49951219 is a wasteful number, since it uses less digits than its factorization.

49951219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2938324.

The product of its digits is 29160, while the sum is 40.

The square root of 49951219 is about 7067.6176325548. The cubic root of 49951219 is about 368.2833037205.

The spelling of 49951219 in words is "forty-nine million, nine hundred fifty-one thousand, two hundred nineteen".