49721603 has 4 divisors (see below), whose sum is σ = 49735920. Its totient is φ = 49707288.

The previous prime is 49721597. The next prime is 49721611. The reversal of 49721603 is 30612794.

49721603 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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 30612794 = 2 ⋅15306397.

It is a cyclic number.

It is not a de Polignac number, because 49721603 - 2⁴ = 49721587 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 49721603.

It is not an unprimeable number, because it can be changed into a prime (49720603) 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, 1733 + ... + 10121.

It is an arithmetic number, because the mean of its divisors is an integer number (12433980).

Almost surely, 2^49721603 is an apocalyptic number.

49721603 is a deficient number, since it is larger than the sum of its proper divisors (14317).

49721603 is an equidigital number, since it uses as much as digits as its factorization.

49721603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14316.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 49721603 is about 7051.3546925396. The cubic root of 49721603 is about 367.7181280216.

The spelling of 49721603 in words is "forty-nine million, seven hundred twenty-one thousand, six hundred three".