5624621 has 2 divisors, whose sum is σ = 5624622. Its totient is φ = 5624620.

The previous prime is 5624617. The next prime is 5624651. The reversal of 5624621 is 1264265.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4468996 + 1155625 = 2114^2 + 1075^2 .

It is a cyclic number.

It is not a de Polignac number, because 5624621 - 2² = 5624617 is a prime.

It is a super-2 number, since 2×5624621² = 63272722787282, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5624611) 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 as a sum of consecutive naturals, namely, 2812310 + 2812311.

It is an arithmetic number, because the mean of its divisors is an integer number (2812311).

Almost surely, 2^5624621 is an apocalyptic number.

It is an amenable number.

5624621 is a deficient number, since it is larger than the sum of its proper divisors (1).

5624621 is an equidigital number, since it uses as much as digits as its factorization.

5624621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 26.

The square root of 5624621 is about 2371.6283435648. The cubic root of 5624621 is about 177.8406708753.

Adding to 5624621 its reverse (1264265), we get a palindrome (6888886).

The spelling of 5624621 in words is "five million, six hundred twenty-four thousand, six hundred twenty-one".