49889129 has 2 divisors, whose sum is σ = 49889130. Its totient is φ = 49889128.

The previous prime is 49889113. The next prime is 49889131. The reversal of 49889129 is 92198894.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29997529 + 19891600 = 5477^2 + 4460^2 .

It is a cyclic number.

It is not a de Polignac number, because 49889129 - 2⁴ = 49889113 is a prime.

Together with 49889131, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49889179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24944564 + 24944565.

It is an arithmetic number, because the mean of its divisors is an integer number (24944565).

Almost surely, 2^49889129 is an apocalyptic number.

It is an amenable number.

49889129 is a deficient number, since it is larger than the sum of its proper divisors (1).

49889129 is an equidigital number, since it uses as much as digits as its factorization.

49889129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 50.

The square root of 49889129 is about 7063.2236974345. The cubic root of 49889129 is about 368.1306468426.

The spelling of 49889129 in words is "forty-nine million, eight hundred eighty-nine thousand, one hundred twenty-nine".