49649863 has 4 divisors (see below), whose sum is σ = 49700080. Its totient is φ = 49599648.

The previous prime is 49649861. The next prime is 49649891. The reversal of 49649863 is 36894694.

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 49649863 - 2¹ = 49649861 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 (49649861) 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, 23595 + ... + 25612.

It is an arithmetic number, because the mean of its divisors is an integer number (12425020).

Almost surely, 2^49649863 is an apocalyptic number.

49649863 is a deficient number, since it is larger than the sum of its proper divisors (50217).

49649863 is a wasteful number, since it uses less digits than its factorization.

49649863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50216.

The product of its digits is 1119744, while the sum is 49.

The square root of 49649863 is about 7046.2658905267. The cubic root of 49649863 is about 367.5411908725.

The spelling of 49649863 in words is "forty-nine million, six hundred forty-nine thousand, eight hundred sixty-three".