50706389 has 2 divisors, whose sum is σ = 50706390. Its totient is φ = 50706388.

The previous prime is 50706379. The next prime is 50706431. The reversal of 50706389 is 98360705.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29702500 + 21003889 = 5450^2 + 4583^2 .

It is a cyclic number.

It is not a de Polignac number, because 50706389 - 2²⁰ = 49657813 is a prime.

It is a super-2 number, since 2×50706389² = 5142275770838642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50706349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25353194 + 25353195.

It is an arithmetic number, because the mean of its divisors is an integer number (25353195).

Almost surely, 2^50706389 is an apocalyptic number.

It is an amenable number.

50706389 is a deficient number, since it is larger than the sum of its proper divisors (1).

50706389 is an equidigital number, since it uses as much as digits as its factorization.

50706389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 50706389 is about 7120.8418743854. The cubic root of 50706389 is about 370.1299494847.

The spelling of 50706389 in words is "fifty million, seven hundred six thousand, three hundred eighty-nine".