5621423403 has 4 divisors (see below), whose sum is σ = 7495231208. Its totient is φ = 3747615600.

The previous prime is 5621423393. The next prime is 5621423413. The reversal of 5621423403 is 3043241265.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (5621423393) and next prime (5621423413).

It is not a de Polignac number, because 5621423403 - 2⁸ = 5621423147 is a prime.

It is a super-2 number, since 2×5621423403² = 63200802151592200818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5621423413) 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, 936903898 + ... + 936903903.

It is an arithmetic number, because the mean of its divisors is an integer number (1873807802).

Almost surely, 2^5621423403 is an apocalyptic number.

5621423403 is a deficient number, since it is larger than the sum of its proper divisors (1873807805).

5621423403 is a wasteful number, since it uses less digits than its factorization.

5621423403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1873807804.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 5621423403 is about 74976.1522285586. The cubic root of 5621423403 is about 1778.0696368030.

Adding to 5621423403 its reverse (3043241265), we get a palindrome (8664664668).

The spelling of 5621423403 in words is "five billion, six hundred twenty-one million, four hundred twenty-three thousand, four hundred three".