50660581 has 2 divisors, whose sum is σ = 50660582. Its totient is φ = 50660580.

The previous prime is 50660573. The next prime is 50660639. The reversal of 50660581 is 18506605.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44435556 + 6225025 = 6666^2 + 2495^2 .

It is a cyclic number.

It is not a de Polignac number, because 50660581 - 2³ = 50660573 is a prime.

It is a super-2 number, since 2×50660581² = 5132988934515122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50660521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25330290 + 25330291.

It is an arithmetic number, because the mean of its divisors is an integer number (25330291).

Almost surely, 2^50660581 is an apocalyptic number.

It is an amenable number.

50660581 is a deficient number, since it is larger than the sum of its proper divisors (1).

50660581 is an equidigital number, since it uses as much as digits as its factorization.

50660581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 50660581 is about 7117.6246740047. The cubic root of 50660581 is about 370.0184578082.

The spelling of 50660581 in words is "fifty million, six hundred sixty thousand, five hundred eighty-one".