558079778 has 4 divisors (see below), whose sum is σ = 837119670. Its totient is φ = 279039888.

The previous prime is 558079777. The next prime is 558079807. The reversal of 558079778 is 877970855.

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., 455523649 + 102556129 = 21343^2 + 10127^2 .

It is a super-2 number, since 2×558079778² = 622906077225058568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (558079777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139519943 + ... + 139519946.

Almost surely, 2^558079778 is an apocalyptic number.

558079778 is a deficient number, since it is larger than the sum of its proper divisors (279039892).

558079778 is a wasteful number, since it uses less digits than its factorization.

558079778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279039891.

The product of its (nonzero) digits is 4939200, while the sum is 56.

The square root of 558079778 is about 23623.7121977051. The cubic root of 558079778 is about 823.3138640878.

It can be divided in two parts, 5580 and 79778, that added together give a palindrome (85358).

The spelling of 558079778 in words is "five hundred fifty-eight million, seventy-nine thousand, seven hundred seventy-eight".