50009149 has 2 divisors, whose sum is σ = 50009150. Its totient is φ = 50009148.

The previous prime is 50009147. The next prime is 50009173. The reversal of 50009149 is 94190005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39000025 + 11009124 = 6245^2 + 3318^2 .

It is a cyclic number.

It is not a de Polignac number, because 50009149 - 2¹ = 50009147 is a prime.

Together with 50009147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50009143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25004574 + 25004575.

It is an arithmetic number, because the mean of its divisors is an integer number (25004575).

Almost surely, 2^50009149 is an apocalyptic number.

It is an amenable number.

50009149 is a deficient number, since it is larger than the sum of its proper divisors (1).

50009149 is an equidigital number, since it uses as much as digits as its factorization.

50009149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 50009149 is about 7071.7147142684. The cubic root of 50009149 is about 368.4256186298.

The spelling of 50009149 in words is "fifty million, nine thousand, one hundred forty-nine".