49971216 has 80 divisors (see below), whose sum is σ = 137144000. Its totient is φ = 15634944.

The previous prime is 49971193. The next prime is 49971221. The reversal of 49971216 is 61217994.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143010 + ... + 143358.

It is an arithmetic number, because the mean of its divisors is an integer number (1714300).

Almost surely, 2^49971216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49971216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68572000).

49971216 is an abundant number, since it is smaller than the sum of its proper divisors (87172784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49971216 is a wasteful number, since it uses less digits than its factorization.

49971216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536 (or 530 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 49971216 is about 7069.0321826966. The cubic root of 49971216 is about 368.3324421855.

The spelling of 49971216 in words is "forty-nine million, nine hundred seventy-one thousand, two hundred sixteen".