49945993 has 4 divisors (see below), whose sum is σ = 50048208. Its totient is φ = 49843780.

The previous prime is 49945969. The next prime is 49946009. The reversal of 49945993 is 39954994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49945993 - 2²⁵ = 16391561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49945993.

It is not an unprimeable number, because it can be changed into a prime (49945963) 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, 50371 + ... + 51352.

It is an arithmetic number, because the mean of its divisors is an integer number (12512052).

Almost surely, 2^49945993 is an apocalyptic number.

It is an amenable number.

49945993 is a deficient number, since it is larger than the sum of its proper divisors (102215).

49945993 is a wasteful number, since it uses less digits than its factorization.

49945993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102214.

The product of its digits is 1574640, while the sum is 52.

The square root of 49945993 is about 7067.2479084860. The cubic root of 49945993 is about 368.2704597518.

Subtracting from 49945993 its reverse (39954994), we obtain a palindrome (9990999).

The spelling of 49945993 in words is "forty-nine million, nine hundred forty-five thousand, nine hundred ninety-three".