51033271 has 4 divisors (see below), whose sum is σ = 51869944. Its totient is φ = 50196600.

The previous prime is 51033247. The next prime is 51033313. The reversal of 51033271 is 17233015.

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 51033271 - 2⁵ = 51033239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51030271) 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, 418245 + ... + 418366.

It is an arithmetic number, because the mean of its divisors is an integer number (12967486).

Almost surely, 2^51033271 is an apocalyptic number.

51033271 is a deficient number, since it is larger than the sum of its proper divisors (836673).

51033271 is an equidigital number, since it uses as much as digits as its factorization.

51033271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836672.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 51033271 is about 7143.7574846855. The cubic root of 51033271 is about 370.9236019893.

Adding to 51033271 its reverse (17233015), we get a palindrome (68266286).

The spelling of 51033271 in words is "fifty-one million, thirty-three thousand, two hundred seventy-one".