5557009 has 4 divisors (see below), whose sum is σ = 5748660. Its totient is φ = 5365360.

The previous prime is 5556983. The next prime is 5557031. The reversal of 5557009 is 9007555.

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 921600 + 4635409 = 960^2 + 2153^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5557009 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5557309) 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, 95782 + ... + 95839.

It is an arithmetic number, because the mean of its divisors is an integer number (1437165).

Almost surely, 2^5557009 is an apocalyptic number.

It is an amenable number.

5557009 is a deficient number, since it is larger than the sum of its proper divisors (191651).

5557009 is a wasteful number, since it uses less digits than its factorization.

5557009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191650.

The product of its (nonzero) digits is 7875, while the sum is 31.

The square root of 5557009 is about 2357.3309059188. The cubic root of 5557009 is about 177.1252053356.

The spelling of 5557009 in words is "five million, five hundred fifty-seven thousand, nine".