1055506105563 has 16 divisors (see below), whose sum is σ = 1732112583936. Its totient is φ = 556750473120.

The previous prime is 1055506105529. The next prime is 1055506105583. The reversal of 1055506105563 is 3655016055501.

It is a happy number.

It is not a de Polignac number, because 1055506105563 - 2¹⁰ = 1055506104539 is a prime.

It is a super-2 number, since 2×1055506105563² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055506105513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1933161093 + ... + 1933161638.

It is an arithmetic number, because the mean of its divisors is an integer number (108257036496).

Almost surely, 2^{1055506105563} is an apocalyptic number.

1055506105563 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1055506105563 is a deficient number, since it is larger than the sum of its proper divisors (676606478373).

1055506105563 is a wasteful number, since it uses less digits than its factorization.

1055506105563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3866322754.

The product of its (nonzero) digits is 337500, while the sum is 42.

The spelling of 1055506105563 in words is "one trillion, fifty-five billion, five hundred six million, one hundred five thousand, five hundred sixty-three".