5335566421 has 4 divisors (see below), whose sum is σ = 5519551500. Its totient is φ = 5151581344.

The previous prime is 5335566419. The next prime is 5335566443. The reversal of 5335566421 is 1246655335.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4278991396 + 1056575025 = 65414^2 + 32505^2 .

It is not a de Polignac number, because 5335566421 - 2¹ = 5335566419 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 (5335566451) 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, 91992496 + ... + 91992553.

It is an arithmetic number, because the mean of its divisors is an integer number (1379887875).

Almost surely, 2^5335566421 is an apocalyptic number.

It is an amenable number.

5335566421 is a deficient number, since it is larger than the sum of its proper divisors (183985079).

5335566421 is a wasteful number, since it uses less digits than its factorization.

5335566421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183985078.

The product of its digits is 324000, while the sum is 40.

The square root of 5335566421 is about 73044.9616400748. The cubic root of 5335566421 is about 1747.4047431674.

The spelling of 5335566421 in words is "five billion, three hundred thirty-five million, five hundred sixty-six thousand, four hundred twenty-one".