558531798 has 64 divisors (see below), whose sum is σ = 1256808960. Its totient is φ = 163987200.

The previous prime is 558531797. The next prime is 558531803. The reversal of 558531798 is 897135855.

It is a super-2 number, since 2×558531798² = 623915538754225608, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 558531798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (558531797) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1071778 + ... + 1072298.

It is an arithmetic number, because the mean of its divisors is an integer number (19637640).

Almost surely, 2^558531798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 558531798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (628404480).

558531798 is an abundant number, since it is smaller than the sum of its proper divisors (698277162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

558531798 is a wasteful number, since it uses less digits than its factorization.

558531798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013.

The product of its digits is 1512000, while the sum is 51.

The square root of 558531798 is about 23633.2773436102. The cubic root of 558531798 is about 823.5360867380.

The spelling of 558531798 in words is "five hundred fifty-eight million, five hundred thirty-one thousand, seven hundred ninety-eight".