50066381 has 2 divisors, whose sum is σ = 50066382. Its totient is φ = 50066380.

The previous prime is 50066369. The next prime is 50066389. The reversal of 50066381 is 18366005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48930025 + 1136356 = 6995^2 + 1066^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50066381 is a prime.

It is a super-2 number, since 2×50066381² = 5013285012874322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50066389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25033190 + 25033191.

It is an arithmetic number, because the mean of its divisors is an integer number (25033191).

Almost surely, 2^50066381 is an apocalyptic number.

It is an amenable number.

50066381 is a deficient number, since it is larger than the sum of its proper divisors (1).

50066381 is an equidigital number, since it uses as much as digits as its factorization.

50066381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 50066381 is about 7075.7601005122. The cubic root of 50066381 is about 368.5661108985.

The spelling of 50066381 in words is "fifty million, sixty-six thousand, three hundred eighty-one".