5639555 has 4 divisors (see below), whose sum is σ = 6767472. Its totient is φ = 4511640.

The previous prime is 5639549. The next prime is 5639567. The reversal of 5639555 is 5559365.

It is a happy number.

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

It is not a de Polignac number, because 5639555 - 2¹⁰ = 5638531 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563951 + ... + 563960.

It is an arithmetic number, because the mean of its divisors is an integer number (1691868).

Almost surely, 2^5639555 is an apocalyptic number.

5639555 is a deficient number, since it is larger than the sum of its proper divisors (1127917).

5639555 is a wasteful number, since it uses less digits than its factorization.

5639555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127916.

The product of its digits is 101250, while the sum is 38.

The square root of 5639555 is about 2374.7747261583. The cubic root of 5639555 is about 177.9979274261.

The spelling of 5639555 in words is "five million, six hundred thirty-nine thousand, five hundred fifty-five".