50125409 has 2 divisors, whose sum is σ = 50125410. Its totient is φ = 50125408.

The previous prime is 50125399. The next prime is 50125451. The reversal of 50125409 is 90452105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50013184 + 112225 = 7072^2 + 335^2 .

It is a cyclic number.

It is not a de Polignac number, because 50125409 - 2⁴ = 50125393 is a prime.

It is not a weakly prime, because it can be changed into another prime (50125489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25062704 + 25062705.

It is an arithmetic number, because the mean of its divisors is an integer number (25062705).

Almost surely, 2^50125409 is an apocalyptic number.

It is an amenable number.

50125409 is a deficient number, since it is larger than the sum of its proper divisors (1).

50125409 is an equidigital number, since it uses as much as digits as its factorization.

50125409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 50125409 is about 7079.9300137784. The cubic root of 50125409 is about 368.7108998473.

The spelling of 50125409 in words is "fifty million, one hundred twenty-five thousand, four hundred nine".