50802581 has 2 divisors, whose sum is σ = 50802582. Its totient is φ = 50802580.

The previous prime is 50802571. The next prime is 50802589. The reversal of 50802581 is 18520805.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49928356 + 874225 = 7066^2 + 935^2 .

It is a cyclic number.

It is not a de Polignac number, because 50802581 - 2²² = 46608277 is a prime.

It is a super-2 number, since 2×50802581² = 5161804472523122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50802589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25401290 + 25401291.

It is an arithmetic number, because the mean of its divisors is an integer number (25401291).

Almost surely, 2^50802581 is an apocalyptic number.

It is an amenable number.

50802581 is a deficient number, since it is larger than the sum of its proper divisors (1).

50802581 is an equidigital number, since it uses as much as digits as its factorization.

50802581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 50802581 is about 7127.5929316986. The cubic root of 50802581 is about 370.3638519622.

The spelling of 50802581 in words is "fifty million, eight hundred two thousand, five hundred eighty-one".