49121803 has 4 divisors (see below), whose sum is σ = 49145688. Its totient is φ = 49097920.

The previous prime is 49121801. The next prime is 49121827. The reversal of 49121803 is 30812194.

It is a happy number.

49121803 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 49121803 - 2¹ = 49121801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49121801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8533 + ... + 13078.

It is an arithmetic number, because the mean of its divisors is an integer number (12286422).

Almost surely, 2^49121803 is an apocalyptic number.

49121803 is a deficient number, since it is larger than the sum of its proper divisors (23885).

49121803 is a wasteful number, since it uses less digits than its factorization.

49121803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23884.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 49121803 is about 7008.6948143003. The cubic root of 49121803 is about 366.2335271977.

Adding to 49121803 its reverse (30812194), we get a palindrome (79933997).

The spelling of 49121803 in words is "forty-nine million, one hundred twenty-one thousand, eight hundred three".