555505105511 has 4 divisors (see below), whose sum is σ = 561746736000. Its totient is φ = 549263475024.

The previous prime is 555505105483. The next prime is 555505105531. The reversal of 555505105511 is 115501505555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 555505105511 - 2¹⁴ = 555505089127 is a prime.

It is a super-2 number, since 2×555505105511² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555505105531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3120815111 + ... + 3120815288.

It is an arithmetic number, because the mean of its divisors is an integer number (140436684000).

Almost surely, 2^555505105511 is an apocalyptic number.

555505105511 is a deficient number, since it is larger than the sum of its proper divisors (6241630489).

555505105511 is an equidigital number, since it uses as much as digits as its factorization.

555505105511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6241630488.

The product of its (nonzero) digits is 78125, while the sum is 38.

The spelling of 555505105511 in words is "five hundred fifty-five billion, five hundred five million, one hundred five thousand, five hundred eleven".