50861189 has 2 divisors, whose sum is σ = 50861190. Its totient is φ = 50861188.

The previous prime is 50861183. The next prime is 50861201. The reversal of 50861189 is 98116805.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27984100 + 22877089 = 5290^2 + 4783^2 .

It is a cyclic number.

It is not a de Polignac number, because 50861189 - 2⁸ = 50860933 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 (50861183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25430594 + 25430595.

It is an arithmetic number, because the mean of its divisors is an integer number (25430595).

Almost surely, 2^50861189 is an apocalyptic number.

It is an amenable number.

50861189 is a deficient number, since it is larger than the sum of its proper divisors (1).

50861189 is an equidigital number, since it uses as much as digits as its factorization.

50861189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 50861189 is about 7131.7030925299. The cubic root of 50861189 is about 370.5062196822.

The spelling of 50861189 in words is "fifty million, eight hundred sixty-one thousand, one hundred eighty-nine".