50730509 has 2 divisors, whose sum is σ = 50730510. Its totient is φ = 50730508.

The previous prime is 50730481. The next prime is 50730517. The reversal of 50730509 is 90503705.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43692100 + 7038409 = 6610^2 + 2653^2 .

It is a cyclic number.

It is not a de Polignac number, because 50730509 - 2¹² = 50726413 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50730529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25365254 + 25365255.

It is an arithmetic number, because the mean of its divisors is an integer number (25365255).

Almost surely, 2^50730509 is an apocalyptic number.

It is an amenable number.

50730509 is a deficient number, since it is larger than the sum of its proper divisors (1).

50730509 is an equidigital number, since it uses as much as digits as its factorization.

50730509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4725, while the sum is 29.

The square root of 50730509 is about 7122.5352929979. The cubic root of 50730509 is about 370.1886279497.

The spelling of 50730509 in words is "fifty million, seven hundred thirty thousand, five hundred nine".