50126509 has 2 divisors, whose sum is σ = 50126510. Its totient is φ = 50126508.

The previous prime is 50126501. The next prime is 50126513. The reversal of 50126509 is 90562105.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42536484 + 7590025 = 6522^2 + 2755^2 .

It is a cyclic number.

It is not a de Polignac number, because 50126509 - 2³ = 50126501 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 (50126501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25063254 + 25063255.

It is an arithmetic number, because the mean of its divisors is an integer number (25063255).

Almost surely, 2^50126509 is an apocalyptic number.

It is an amenable number.

50126509 is a deficient number, since it is larger than the sum of its proper divisors (1).

50126509 is an equidigital number, since it uses as much as digits as its factorization.

50126509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 50126509 is about 7080.0076977359. The cubic root of 50126509 is about 368.7135969426.

The spelling of 50126509 in words is "fifty million, one hundred twenty-six thousand, five hundred nine".