5251121 has 8 divisors (see below), whose sum is σ = 5451264. Its totient is φ = 5052960.

The previous prime is 5251097. The next prime is 5251123. The reversal of 5251121 is 1211525.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5251121 is a prime.

It is a super-3 number, since 3×5251121³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5251121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5251123) 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, 6860 + ... + 7586.

It is an arithmetic number, because the mean of its divisors is an integer number (681408).

Almost surely, 2^5251121 is an apocalyptic number.

It is an amenable number.

5251121 is a deficient number, since it is larger than the sum of its proper divisors (200143).

5251121 is a wasteful number, since it uses less digits than its factorization.

5251121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991.

The product of its digits is 100, while the sum is 17.

The square root of 5251121 is about 2291.5324566761. The cubic root of 5251121 is about 173.8137016048.

Adding to 5251121 its reverse (1211525), we get a palindrome (6462646).

The spelling of 5251121 in words is "five million, two hundred fifty-one thousand, one hundred twenty-one".