49777271 has 4 divisors (see below), whose sum is σ = 49807512. Its totient is φ = 49747032.

The previous prime is 49777261. The next prime is 49777303. The reversal of 49777271 is 17277794.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49777271 - 2¹⁸ = 49515127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49777261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12500 + ... + 15993.

It is an arithmetic number, because the mean of its divisors is an integer number (12451878).

Almost surely, 2^49777271 is an apocalyptic number.

49777271 is a deficient number, since it is larger than the sum of its proper divisors (30241).

49777271 is a wasteful number, since it uses less digits than its factorization.

49777271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30240.

The product of its digits is 172872, while the sum is 44.

The square root of 49777271 is about 7055.3009149150. The cubic root of 49777271 is about 367.8553084881.

The spelling of 49777271 in words is "forty-nine million, seven hundred seventy-seven thousand, two hundred seventy-one".