5263621 has 12 divisors (see below), whose sum is σ = 5932332. Its totient is φ = 4664000.

The previous prime is 5263613. The next prime is 5263631. The reversal of 5263621 is 1263625.

It can be written as a sum of positive squares in 2 ways, for example, as 1600225 + 3663396 = 1265^2 + 1914^2 .

It is not a de Polignac number, because 5263621 - 2³ = 5263613 is a prime.

It is a d-powerful number, because it can be written as 5⁴ + 2²⁰ + 6³ + 3⁹ + 6³ + 2²² + 1 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5263631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4431 + ... + 5491.

It is an arithmetic number, because the mean of its divisors is an integer number (494361).

Almost surely, 2^5263621 is an apocalyptic number.

It is an amenable number.

5263621 is a deficient number, since it is larger than the sum of its proper divisors (668711).

5263621 is a wasteful number, since it uses less digits than its factorization.

5263621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124 (or 1113 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 5263621 is about 2294.2582679376. The cubic root of 5263621 is about 173.9515102475.

The spelling of 5263621 in words is "five million, two hundred sixty-three thousand, six hundred twenty-one".