49551899 has 2 divisors, whose sum is σ = 49551900. Its totient is φ = 49551898.

The previous prime is 49551893. The next prime is 49551989. The reversal of 49551899 is 99815594.

49551899 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (49551989) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49551899 - 2⁸ = 49551643 is a prime.

It is a super-3 number, since 3×49551899³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49551893) 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 as a sum of consecutive naturals, namely, 24775949 + 24775950.

It is an arithmetic number, because the mean of its divisors is an integer number (24775950).

Almost surely, 2^49551899 is an apocalyptic number.

49551899 is a deficient number, since it is larger than the sum of its proper divisors (1).

49551899 is an equidigital number, since it uses as much as digits as its factorization.

49551899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 583200, while the sum is 50.

The square root of 49551899 is about 7039.3109748043. The cubic root of 49551899 is about 367.2993002272.

The spelling of 49551899 in words is "forty-nine million, five hundred fifty-one thousand, eight hundred ninety-nine".