5621563 has 4 divisors (see below), whose sum is σ = 5815440. Its totient is φ = 5427688.

The previous prime is 5621513. The next prime is 5621597. The reversal of 5621563 is 3651265.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3651265 = 5 ⋅730253.

It is a cyclic number.

It is not a de Polignac number, because 5621563 - 2⁹ = 5621051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5621503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96895 + ... + 96952.

It is an arithmetic number, because the mean of its divisors is an integer number (1453860).

Almost surely, 2^5621563 is an apocalyptic number.

5621563 is a deficient number, since it is larger than the sum of its proper divisors (193877).

5621563 is a wasteful number, since it uses less digits than its factorization.

5621563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193876.

The product of its digits is 5400, while the sum is 28.

The square root of 5621563 is about 2370.9835511871. The cubic root of 5621563 is about 177.8084354969.

The spelling of 5621563 in words is "five million, six hundred twenty-one thousand, five hundred sixty-three".