5558138 has 4 divisors (see below), whose sum is σ = 8337210. Its totient is φ = 2779068.

The previous prime is 5558123. The next prime is 5558143. The reversal of 5558138 is 8318555.

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

It can be written as a sum of positive squares in only one way, i.e., 5508409 + 49729 = 2347^2 + 223^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5558098 and 5558107.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1389533 + ... + 1389536.

Almost surely, 2^5558138 is an apocalyptic number.

5558138 is a deficient number, since it is larger than the sum of its proper divisors (2779072).

5558138 is a wasteful number, since it uses less digits than its factorization.

5558138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2779071.

The product of its digits is 24000, while the sum is 35.

The square root of 5558138 is about 2357.5703595015. The cubic root of 5558138 is about 177.1371998466.

The spelling of 5558138 in words is "five million, five hundred fifty-eight thousand, one hundred thirty-eight".