1055493855 has 64 divisors (see below), whose sum is σ = 2036643840. Its totient is φ = 515548800.

The previous prime is 1055493827. The next prime is 1055493863. The reversal of 1055493855 is 5583945501.

1055493855 is a `hidden beast` number, since 1 + 0 + 554 + 93 + 8 + 5 + 5 = 666.

It is not a de Polignac number, because 1055493855 - 2⁵ = 1055493823 is a prime.

It is a super-2 number, since 2×1055493855² = 2228134555885522050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1055493855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 227610 + ... + 232200.

It is an arithmetic number, because the mean of its divisors is an integer number (31822560).

Almost surely, 2^1055493855 is an apocalyptic number.

1055493855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1055493855 is a deficient number, since it is larger than the sum of its proper divisors (981149985).

1055493855 is a wasteful number, since it uses less digits than its factorization.

1055493855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4749 (or 4743 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 45.

The square root of 1055493855 is about 32488.3649173054. The cubic root of 1055493855 is about 1018.1659516034.

The spelling of 1055493855 in words is "one billion, fifty-five million, four hundred ninety-three thousand, eight hundred fifty-five".