1055105565 has 32 divisors (see below), whose sum is σ = 1765103616. Its totient is φ = 537176640.

The previous prime is 1055105537. The next prime is 1055105617. The reversal of 1055105565 is 5655015501.

It is not a de Polignac number, because 1055105565 - 2⁶ = 1055105501 is a prime.

It is a super-2 number, since 2×1055105565² = 2226495506587938450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185920 + ... + 191510.

It is an arithmetic number, because the mean of its divisors is an integer number (55159488).

Almost surely, 2^1055105565 is an apocalyptic number.

1055105565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1055105565 is a deficient number, since it is larger than the sum of its proper divisors (709998051).

1055105565 is a wasteful number, since it uses less digits than its factorization.

1055105565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6169.

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

The square root of 1055105565 is about 32482.3885359436. The cubic root of 1055105565 is about 1018.0410836267.

The spelling of 1055105565 in words is "one billion, fifty-five million, one hundred five thousand, five hundred sixty-five".