49543865 has 16 divisors (see below), whose sum is σ = 71943552. Its totient is φ = 31974144.

The previous prime is 49543853. The next prime is 49543873. The reversal of 49543865 is 56834594.

It is not a de Polignac number, because 49543865 - 2⁶ = 49543801 is a prime.

It is a Duffinian number.

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, 41039 + ... + 42228.

It is an arithmetic number, because the mean of its divisors is an integer number (4496472).

Almost surely, 2^49543865 is an apocalyptic number.

It is an amenable number.

49543865 is a deficient number, since it is larger than the sum of its proper divisors (22399687).

49543865 is a wasteful number, since it uses less digits than its factorization.

49543865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83296.

The product of its digits is 518400, while the sum is 44.

The square root of 49543865 is about 7038.7402992297. The cubic root of 49543865 is about 367.2794487037.

The spelling of 49543865 in words is "forty-nine million, five hundred forty-three thousand, eight hundred sixty-five".