1000055558 has 16 divisors (see below), whose sum is σ = 1536454656. Its totient is φ = 487926600.

The previous prime is 1000055527. The next prime is 1000055597. The reversal of 1000055558 is 8555500001.

It is a super-3 number, since 3×1000055558³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 1000055558.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93935 + ... + 104037.

It is an arithmetic number, because the mean of its divisors is an integer number (96028416).

Almost surely, 2^1000055558 is an apocalyptic number.

1000055558 is a deficient number, since it is larger than the sum of its proper divisors (536399098).

1000055558 is a wasteful number, since it uses less digits than its factorization.

1000055558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11299.

The product of its (nonzero) digits is 5000, while the sum is 29.

The square root of 1000055558 is about 31623.6550385941. The cubic root of 1000055558 is about 1000.0185189904.

Adding to 1000055558 its reverse (8555500001), we get a palindrome (9555555559).

The spelling of 1000055558 in words is "one billion, fifty-five thousand, five hundred fifty-eight".