49971711 has 4 divisors (see below), whose sum is σ = 66628952. Its totient is φ = 33314472.

The previous prime is 49971697. The next prime is 49971731. The reversal of 49971711 is 11717994.

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

It is not a de Polignac number, because 49971711 - 2¹⁷ = 49840639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49971711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49971731) 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, 8328616 + ... + 8328621.

It is an arithmetic number, because the mean of its divisors is an integer number (16657238).

Almost surely, 2^49971711 is an apocalyptic number.

49971711 is a deficient number, since it is larger than the sum of its proper divisors (16657241).

49971711 is a wasteful number, since it uses less digits than its factorization.

49971711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16657240.

The product of its digits is 15876, while the sum is 39.

The square root of 49971711 is about 7069.0671944748. The cubic root of 49971711 is about 368.3336583787. Note that the first 3 decimals are identical.

The spelling of 49971711 in words is "forty-nine million, nine hundred seventy-one thousand, seven hundred eleven".