5651271 has 6 divisors (see below), whose sum is σ = 8162960. Its totient is φ = 3767508.

The previous prime is 5651263. The next prime is 5651273. The reversal of 5651271 is 1721565.

5651271 is a `hidden beast` number, since 5 + 651 + 2 + 7 + 1 = 666.

It is not a de Polignac number, because 5651271 - 2³ = 5651263 is a prime.

It is a Duffinian number.

5651271 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5651273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 313951 + ... + 313968.

Almost surely, 2^5651271 is an apocalyptic number.

5651271 is a deficient number, since it is larger than the sum of its proper divisors (2511689).

5651271 is a wasteful number, since it uses less digits than its factorization.

5651271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627925 (or 627922 counting only the distinct ones).

The product of its digits is 2100, while the sum is 27.

The square root of 5651271 is about 2377.2402066262. The cubic root of 5651271 is about 178.1211038852.

The spelling of 5651271 in words is "five million, six hundred fifty-one thousand, two hundred seventy-one".