49981699 has 2 divisors, whose sum is σ = 49981700. Its totient is φ = 49981698.

The previous prime is 49981697. The next prime is 49981787. The reversal of 49981699 is 99618994.

49981699 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49981699 - 2¹ = 49981697 is a prime.

Together with 49981697, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (49981693) 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, 24990849 + 24990850.

It is an arithmetic number, because the mean of its divisors is an integer number (24990850).

Almost surely, 2^49981699 is an apocalyptic number.

49981699 is a deficient number, since it is larger than the sum of its proper divisors (1).

49981699 is an equidigital number, since it uses as much as digits as its factorization.

49981699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1259712, while the sum is 55.

The square root of 49981699 is about 7069.7736173091. The cubic root of 49981699 is about 368.3581967387.

The spelling of 49981699 in words is "forty-nine million, nine hundred eighty-one thousand, six hundred ninety-nine".