49001903 has 2 divisors, whose sum is σ = 49001904. Its totient is φ = 49001902.

The previous prime is 49001899. The next prime is 49002049. The reversal of 49001903 is 30910094.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49001903 - 2² = 49001899 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49001003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24500951 + 24500952.

It is an arithmetic number, because the mean of its divisors is an integer number (24500952).

Almost surely, 2^49001903 is an apocalyptic number.

49001903 is a deficient number, since it is larger than the sum of its proper divisors (1).

49001903 is an equidigital number, since it uses as much as digits as its factorization.

49001903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 49001903 is about 7000.1359272517. The cubic root of 49001903 is about 365.9353081238.

Adding to 49001903 its reverse (30910094), we get a palindrome (79911997).

The spelling of 49001903 in words is "forty-nine million, one thousand, nine hundred three".