5433437621 has 4 divisors (see below), whose sum is σ = 5438303052. Its totient is φ = 5428572192.

The previous prime is 5433437587. The next prime is 5433437627. The reversal of 5433437621 is 1267343345.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1267343345 = 5 ⋅253468669.

It can be written as a sum of positive squares in 2 ways, for example, as 692426596 + 4741011025 = 26314^2 + 68855^2 .

It is a cyclic number.

It is not a de Polignac number, because 5433437621 - 2⁶ = 5433437557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5433437627) 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, 2431040 + ... + 2433273.

It is an arithmetic number, because the mean of its divisors is an integer number (1359575763).

Almost surely, 2^5433437621 is an apocalyptic number.

It is an amenable number.

5433437621 is a deficient number, since it is larger than the sum of its proper divisors (4865431).

5433437621 is a wasteful number, since it uses less digits than its factorization.

5433437621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4865430.

The product of its digits is 181440, while the sum is 38.

The square root of 5433437621 is about 73711.8553626213. The cubic root of 5433437621 is about 1758.0243866884.

The spelling of 5433437621 in words is "five billion, four hundred thirty-three million, four hundred thirty-seven thousand, six hundred twenty-one".