1055636505 has 96 divisors (see below), whose sum is σ = 2415598848. Its totient is φ = 412876800.

The previous prime is 1055636489. The next prime is 1055636531. The reversal of 1055636505 is 5056365501.

1055636505 is a `hidden beast` number, since 10 + 5 + 5 + 636 + 5 + 0 + 5 = 666.

It is not a de Polignac number, because 1055636505 - 2⁴ = 1055636489 is a prime.

It is a super-2 number, since 2×1055636505² = 2228736861377230050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1055636505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 49945 + ... + 67865.

It is an arithmetic number, because the mean of its divisors is an integer number (25162488).

Almost surely, 2^1055636505 is an apocalyptic number.

1055636505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1055636505 is an abundant number, since it is smaller than the sum of its proper divisors (1359962343).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1055636505 is a wasteful number, since it uses less digits than its factorization.

1055636505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17967 (or 17964 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The square root of 1055636505 is about 32490.5602444772. The cubic root of 1055636505 is about 1018.2118179151.

The spelling of 1055636505 in words is "one billion, fifty-five million, six hundred thirty-six thousand, five hundred five".