5509993 has 4 divisors (see below), whose sum is σ = 5558868. Its totient is φ = 5461120.

The previous prime is 5509979. The next prime is 5509997. The reversal of 5509993 is 3999055.

It is a happy number.

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 2647129 + 2862864 = 1627^2 + 1692^2 .

It is a cyclic number.

It is not a de Polignac number, because 5509993 - 2¹³ = 5501801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5509997) 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, 24268 + ... + 24493.

It is an arithmetic number, because the mean of its divisors is an integer number (1389717).

Almost surely, 2^5509993 is an apocalyptic number.

It is an amenable number.

5509993 is a deficient number, since it is larger than the sum of its proper divisors (48875).

5509993 is a wasteful number, since it uses less digits than its factorization.

5509993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48874.

The product of its (nonzero) digits is 54675, while the sum is 40.

The square root of 5509993 is about 2347.3374278105. The cubic root of 5509993 is about 176.6242574522.

The spelling of 5509993 in words is "five million, five hundred nine thousand, nine hundred ninety-three".