49813643 has 6 divisors (see below), whose sum is σ = 54753972. Its totient is φ = 45285020.

The previous prime is 49813633. The next prime is 49813661. The reversal of 49813643 is 34631894.

It is not a de Polignac number, because 49813643 - 2⁴ = 49813627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49813597 and 49813606.

It is not an unprimeable number, because it can be changed into a prime (49813633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 205721 + ... + 205962.

It is an arithmetic number, because the mean of its divisors is an integer number (9125662).

Almost surely, 2^49813643 is an apocalyptic number.

49813643 is a deficient number, since it is larger than the sum of its proper divisors (4940329).

49813643 is a wasteful number, since it uses less digits than its factorization.

49813643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411705 (or 411694 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 49813643 is about 7057.8780805565. The cubic root of 49813643 is about 367.9448833451.

It can be divided in two parts, 498 and 13643, that added together give a palindrome (14141).

The spelling of 49813643 in words is "forty-nine million, eight hundred thirteen thousand, six hundred forty-three".