1056566 has 16 divisors (see below), whose sum is σ = 1826304. Its totient is φ = 449064.

The previous prime is 1056563. The next prime is 1056569. The reversal of 1056566 is 6656501.

1056566 = 68² + 69² + ... + 151².

It is an interprime number because it is at equal distance from previous prime (1056563) and next prime (1056569).

It is a super-2 number, since 2×1056566² = 2232663424712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2051 + ... + 2513.

It is an arithmetic number, because the mean of its divisors is an integer number (114144).

2^1056566 is an apocalyptic number.

1056566 is a deficient number, since it is larger than the sum of its proper divisors (769738).

1056566 is a wasteful number, since it uses less digits than its factorization.

1056566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 1056566 is about 1027.8939634028. The cubic root of 1056566 is about 101.8510577683.

The spelling of 1056566 in words is "one million, fifty-six thousand, five hundred sixty-six".