49199191 has 2 divisors, whose sum is σ = 49199192. Its totient is φ = 49199190.

The previous prime is 49199179. The next prime is 49199197. The reversal of 49199191 is 19199194.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49199191 - 2⁷ = 49199063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49199197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24599595 + 24599596.

It is an arithmetic number, because the mean of its divisors is an integer number (24599596).

Almost surely, 2^49199191 is an apocalyptic number.

49199191 is a deficient number, since it is larger than the sum of its proper divisors (1).

49199191 is an equidigital number, since it uses as much as digits as its factorization.

49199191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26244, while the sum is 43.

The square root of 49199191 is about 7014.2134983190. The cubic root of 49199191 is about 366.4257514771.

The spelling of 49199191 in words is "forty-nine million, one hundred ninety-nine thousand, one hundred ninety-one".