49805149 has 2 divisors, whose sum is σ = 49805150. Its totient is φ = 49805148.

The previous prime is 49805131. The next prime is 49805153. The reversal of 49805149 is 94150894.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28965924 + 20839225 = 5382^2 + 4565^2 .

It is a cyclic number.

It is not a de Polignac number, because 49805149 - 2¹⁷ = 49674077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49805159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24902574 + 24902575.

It is an arithmetic number, because the mean of its divisors is an integer number (24902575).

Almost surely, 2^49805149 is an apocalyptic number.

It is an amenable number.

49805149 is a deficient number, since it is larger than the sum of its proper divisors (1).

49805149 is an equidigital number, since it uses as much as digits as its factorization.

49805149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 49805149 is about 7057.2763159735. The cubic root of 49805149 is about 367.9239687167.

The spelling of 49805149 in words is "forty-nine million, eight hundred five thousand, one hundred forty-nine".