49533149 has 2 divisors, whose sum is σ = 49533150. Its totient is φ = 49533148.

The previous prime is 49533137. The next prime is 49533151. The reversal of 49533149 is 94133594.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37332100 + 12201049 = 6110^2 + 3493^2 .

It is a cyclic number.

It is not a de Polignac number, because 49533149 - 2⁸ = 49532893 is a prime.

It is a Sophie Germain prime.

Together with 49533151, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49533179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24766574 + 24766575.

It is an arithmetic number, because the mean of its divisors is an integer number (24766575).

Almost surely, 2^49533149 is an apocalyptic number.

It is an amenable number.

49533149 is a deficient number, since it is larger than the sum of its proper divisors (1).

49533149 is an equidigital number, since it uses as much as digits as its factorization.

49533149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 38.

The square root of 49533149 is about 7037.9790423104. The cubic root of 49533149 is about 367.2529667813.

The spelling of 49533149 in words is "forty-nine million, five hundred thirty-three thousand, one hundred forty-nine".