49774981 has 2 divisors, whose sum is σ = 49774982. Its totient is φ = 49774980.

The previous prime is 49774939. The next prime is 49774993. The reversal of 49774981 is 18947794.

49774981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42837025 + 6937956 = 6545^2 + 2634^2 .

It is a cyclic number.

It is not a de Polignac number, because 49774981 - 2¹⁹ = 49250693 is a prime.

It is a super-2 number, since 2×49774981² = 4955097467100722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49774931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24887490 + 24887491.

It is an arithmetic number, because the mean of its divisors is an integer number (24887491).

Almost surely, 2^49774981 is an apocalyptic number.

It is an amenable number.

49774981 is a deficient number, since it is larger than the sum of its proper divisors (1).

49774981 is an equidigital number, since it uses as much as digits as its factorization.

49774981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 49.

The square root of 49774981 is about 7055.1386237267. The cubic root of 49774981 is about 367.8496673487.

The spelling of 49774981 in words is "forty-nine million, seven hundred seventy-four thousand, nine hundred eighty-one".