49111971 has 4 divisors (see below), whose sum is σ = 65482632. Its totient is φ = 32741312.

The previous prime is 49111961. The next prime is 49111981. The reversal of 49111971 is 17911194.

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

It is an interprime number because it is at equal distance from previous prime (49111961) and next prime (49111981).

It is a cyclic number.

It is not a de Polignac number, because 49111971 - 2¹³ = 49103779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49111961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8185326 + ... + 8185331.

It is an arithmetic number, because the mean of its divisors is an integer number (16370658).

Almost surely, 2^49111971 is an apocalyptic number.

49111971 is a deficient number, since it is larger than the sum of its proper divisors (16370661).

49111971 is a wasteful number, since it uses less digits than its factorization.

49111971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16370660.

The product of its digits is 2268, while the sum is 33.

The square root of 49111971 is about 7007.9933647229. The cubic root of 49111971 is about 366.2090910133.

The spelling of 49111971 in words is "forty-nine million, one hundred eleven thousand, nine hundred seventy-one".