50641609 has 2 divisors, whose sum is σ = 50641610. Its totient is φ = 50641608.

The previous prime is 50641603. The next prime is 50641621. The reversal of 50641609 is 90614605.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46621584 + 4020025 = 6828^2 + 2005^2 .

It is a cyclic number.

It is not a de Polignac number, because 50641609 - 2¹³ = 50633417 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50641603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25320804 + 25320805.

It is an arithmetic number, because the mean of its divisors is an integer number (25320805).

Almost surely, 2^50641609 is an apocalyptic number.

It is an amenable number.

50641609 is a deficient number, since it is larger than the sum of its proper divisors (1).

50641609 is an equidigital number, since it uses as much as digits as its factorization.

50641609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 50641609 is about 7116.2918012122. The cubic root of 50641609 is about 369.9722623472.

The spelling of 50641609 in words is "fifty million, six hundred forty-one thousand, six hundred nine".