49447091 has 2 divisors, whose sum is σ = 49447092. Its totient is φ = 49447090.

The previous prime is 49447081. The next prime is 49447093. The reversal of 49447091 is 19074494.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49447091 is a prime.

Together with 49447093, 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 (49447093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24723545 + 24723546.

It is an arithmetic number, because the mean of its divisors is an integer number (24723546).

Almost surely, 2^49447091 is an apocalyptic number.

49447091 is a deficient number, since it is larger than the sum of its proper divisors (1).

49447091 is an equidigital number, since it uses as much as digits as its factorization.

49447091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 49447091 is about 7031.8625555396. The cubic root of 49447091 is about 367.0401572622.

The spelling of 49447091 in words is "forty-nine million, four hundred forty-seven thousand, ninety-one".