1005552111055 has 8 divisors (see below), whose sum is σ = 1206668638800. Its totient is φ = 804437618496.

The previous prime is 1005552111041. The next prime is 1005552111107. The reversal of 1005552111055 is 5501112555001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1005552111055 - 2¹⁷ = 1005551979983 is a prime.

It is a super-2 number, since 2×1005552111055² (a number of 25 digits) contains 22 as substring.

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, 967731 + ... + 1716859.

It is an arithmetic number, because the mean of its divisors is an integer number (150833579850).

Almost surely, 2^{1005552111055} is an apocalyptic number.

1005552111055 is a deficient number, since it is larger than the sum of its proper divisors (201116527745).

1005552111055 is an equidigital number, since it uses as much as digits as its factorization.

1005552111055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017593.

The product of its (nonzero) digits is 6250, while the sum is 31.

Adding to 1005552111055 its reverse (5501112555001), we get a palindrome (6506664666056).

The spelling of 1005552111055 in words is "one trillion, five billion, five hundred fifty-two million, one hundred eleven thousand, fifty-five".