50161291 has 2 divisors, whose sum is σ = 50161292. Its totient is φ = 50161290.

The previous prime is 50161259. The next prime is 50161301. The reversal of 50161291 is 19216105.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50161291 - 2⁵ = 50161259 is a prime.

It is a super-2 number, since 2×50161291² = 5032310229573362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (50191291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25080645 + 25080646.

It is an arithmetic number, because the mean of its divisors is an integer number (25080646).

Almost surely, 2^50161291 is an apocalyptic number.

50161291 is a deficient number, since it is larger than the sum of its proper divisors (1).

50161291 is an equidigital number, since it uses as much as digits as its factorization.

50161291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 50161291 is about 7082.4636250390. The cubic root of 50161291 is about 368.7988587563.

Adding to 50161291 its reverse (19216105), we get a palindrome (69377396).

The spelling of 50161291 in words is "fifty million, one hundred sixty-one thousand, two hundred ninety-one".