50045881 has 2 divisors, whose sum is σ = 50045882. Its totient is φ = 50045880.

The previous prime is 50045839. The next prime is 50045887. The reversal of 50045881 is 18854005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47485881 + 2560000 = 6891^2 + 1600^2 .

It is a cyclic number.

It is not a de Polignac number, because 50045881 - 2¹⁵ = 50013113 is a prime.

It is a super-2 number, since 2×50045881² = 5009180410132322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (50045887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25022940 + 25022941.

It is an arithmetic number, because the mean of its divisors is an integer number (25022941).

Almost surely, 2^50045881 is an apocalyptic number.

It is an amenable number.

50045881 is a deficient number, since it is larger than the sum of its proper divisors (1).

50045881 is an equidigital number, since it uses as much as digits as its factorization.

50045881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 50045881 is about 7074.3113445762. The cubic root of 50045881 is about 368.5158001138.

Adding to 50045881 its reverse (18854005), we get a palindrome (68899886).

The spelling of 50045881 in words is "fifty million, forty-five thousand, eight hundred eighty-one".