5251071 has 8 divisors (see below), whose sum is σ = 8001664. Its totient is φ = 3000600.

The previous prime is 5251039. The next prime is 5251097. The reversal of 5251071 is 1701525.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5251071 - 2⁵ = 5251039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 250051 = 5251071 / (5 + 2 + 5 + 1 + 0 + 7 + 1).

It is a Duffinian number.

5251071 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5251271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125005 + ... + 125046.

It is an arithmetic number, because the mean of its divisors is an integer number (1000208).

Almost surely, 2^5251071 is an apocalyptic number.

5251071 is a deficient number, since it is larger than the sum of its proper divisors (2750593).

5251071 is a wasteful number, since it uses less digits than its factorization.

5251071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250061.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 5251071 is about 2291.5215469203. The cubic root of 5251071 is about 173.8131499313.

Adding to 5251071 its reverse (1701525), we get a palindrome (6952596).

It can be divided in two parts, 525 and 1071, that added together give a triangular number (1596 = T₅₆).

The spelling of 5251071 in words is "five million, two hundred fifty-one thousand, seventy-one".