10561000055505 has 32 divisors (see below), whose sum is σ = 17230266563328. Its totient is φ = 5522521132800.

The previous prime is 10561000055491. The next prime is 10561000055513. The reversal of 10561000055505 is 50555000016501.

It is not a de Polignac number, because 10561000055505 - 2¹⁰ = 10561000054481 is a prime.

It is a super-2 number, since 2×10561000055505² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27200694 + ... + 27586223.

It is an arithmetic number, because the mean of its divisors is an integer number (538445830104).

Almost surely, 2^{10561000055505} is an apocalyptic number.

10561000055505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10561000055505 is a deficient number, since it is larger than the sum of its proper divisors (6669266507823).

10561000055505 is a wasteful number, since it uses less digits than its factorization.

10561000055505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54787177.

The product of its (nonzero) digits is 18750, while the sum is 33.

The spelling of 10561000055505 in words is "ten trillion, five hundred sixty-one billion, fifty-five thousand, five hundred five".