50552009 has 2 divisors, whose sum is σ = 50552010. Its totient is φ = 50552008.

The previous prime is 50551987. The next prime is 50552011. The reversal of 50552009 is 90025505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26296384 + 24255625 = 5128^2 + 4925^2 .

It is a cyclic number.

It is not a de Polignac number, because 50552009 - 2¹⁶ = 50486473 is a prime.

It is a super-2 number, since 2×50552009² = 5111011227872162, which contains 22 as substring.

Together with 50552011, 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 (50552039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25276004 + 25276005.

It is an arithmetic number, because the mean of its divisors is an integer number (25276005).

Almost surely, 2^50552009 is an apocalyptic number.

It is an amenable number.

50552009 is a deficient number, since it is larger than the sum of its proper divisors (1).

50552009 is an equidigital number, since it uses as much as digits as its factorization.

50552009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 50552009 is about 7109.9936005597. The cubic root of 50552009 is about 369.7539367119.

The spelling of 50552009 in words is "fifty million, five hundred fifty-two thousand, nine".