5221261 has 8 divisors (see below), whose sum is σ = 5553144. Its totient is φ = 4892160.

The previous prime is 5221231. The next prime is 5221283. The reversal of 5221261 is 1621225.

It can be written as a sum of positive squares in 4 ways, for example, as 3515625 + 1705636 = 1875^2 + 1306^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5221261 - 2⁷ = 5221133 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 (5221211) 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, 4231 + ... + 5323.

It is an arithmetic number, because the mean of its divisors is an integer number (694143).

Almost surely, 2^5221261 is an apocalyptic number.

It is an amenable number.

5221261 is a deficient number, since it is larger than the sum of its proper divisors (331883).

5221261 is a wasteful number, since it uses less digits than its factorization.

5221261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391.

The product of its digits is 240, while the sum is 19.

The square root of 5221261 is about 2285.0078774481. The cubic root of 5221261 is about 173.4836167872.

Adding to 5221261 its reverse (1621225), we get a palindrome (6842486).

The spelling of 5221261 in words is "five million, two hundred twenty-one thousand, two hundred sixty-one".