5622521 has 2 divisors, whose sum is σ = 5622522. Its totient is φ = 5622520.

The previous prime is 5622497. The next prime is 5622527. The reversal of 5622521 is 1252265.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3097600 + 2524921 = 1760^2 + 1589^2 .

It is a cyclic number.

It is not a de Polignac number, because 5622521 - 2⁶ = 5622457 is a prime.

It is a super-2 number, since 2×5622521² = 63225484790882, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5622527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2811260 + 2811261.

It is an arithmetic number, because the mean of its divisors is an integer number (2811261).

Almost surely, 2^5622521 is an apocalyptic number.

It is an amenable number.

5622521 is a deficient number, since it is larger than the sum of its proper divisors (1).

5622521 is an equidigital number, since it uses as much as digits as its factorization.

5622521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1200, while the sum is 23.

The square root of 5622521 is about 2371.1855684446. The cubic root of 5622521 is about 177.8185353455.

Adding to 5622521 its reverse (1252265), we get a palindrome (6874786).

The spelling of 5622521 in words is "five million, six hundred twenty-two thousand, five hundred twenty-one".