5581258 has 4 divisors (see below), whose sum is σ = 8371890. Its totient is φ = 2790628.

The previous prime is 5581229. The next prime is 5581259. The reversal of 5581258 is 8521855.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8521855 = 5 ⋅1704371.

It can be written as a sum of positive squares in only one way, i.e., 4721929 + 859329 = 2173^2 + 927^2 .

It is not an unprimeable number, because it can be changed into a prime (5581259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1395313 + ... + 1395316.

Almost surely, 2^5581258 is an apocalyptic number.

5581258 is a deficient number, since it is larger than the sum of its proper divisors (2790632).

5581258 is a wasteful number, since it uses less digits than its factorization.

5581258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790631.

The product of its digits is 16000, while the sum is 34.

The square root of 5581258 is about 2362.4686241303. The cubic root of 5581258 is about 177.3824706328.

The spelling of 5581258 in words is "five million, five hundred eighty-one thousand, two hundred fifty-eight".