1055571 has 16 divisors (see below), whose sum is σ = 1589760. Its totient is φ = 617120.

The previous prime is 1055567. The next prime is 1055591. The reversal of 1055571 is 1755501.

It is not a de Polignac number, because 1055571 - 2² = 1055567 is a prime.

It is a super-2 number, since 2×1055571² = 2228460272082, which contains 22 as substring.

1055571 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1055501) 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, 406 + ... + 1508.

It is an arithmetic number, because the mean of its divisors is an integer number (99360).

2^1055571 is an apocalyptic number.

1055571 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1055571 is a deficient number, since it is larger than the sum of its proper divisors (534189).

1055571 is a wasteful number, since it uses less digits than its factorization.

1055571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146.

The product of its (nonzero) digits is 875, while the sum is 24.

The square root of 1055571 is about 1027.4098500598. The cubic root of 1055571 is about 101.8190756579.

The spelling of 1055571 in words is "one million, fifty-five thousand, five hundred seventy-one".