50402291 has 4 divisors (see below), whose sum is σ = 51154632. Its totient is φ = 49649952.

The previous prime is 50402273. The next prime is 50402293. The reversal of 50402291 is 19220405.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50402291 - 2⁶ = 50402227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50402293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376070 + ... + 376203.

It is an arithmetic number, because the mean of its divisors is an integer number (12788658).

Almost surely, 2^50402291 is an apocalyptic number.

50402291 is a deficient number, since it is larger than the sum of its proper divisors (752341).

50402291 is an equidigital number, since it uses as much as digits as its factorization.

50402291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752340.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 50402291 is about 7099.4570919191. The cubic root of 50402291 is about 369.3885469382.

Adding to 50402291 its reverse (19220405), we get a palindrome (69622696).

The spelling of 50402291 in words is "fifty million, four hundred two thousand, two hundred ninety-one".