1055663 has 8 divisors (see below), whose sum is σ = 1213440. Its totient is φ = 899640.

The previous prime is 1055611. The next prime is 1055671. The reversal of 1055663 is 3665501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1055663 - 2⁸ = 1055407 is a prime.

It is a super-2 number, since 2×1055663² = 2228848739138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1358 + ... + 1988.

It is an arithmetic number, because the mean of its divisors is an integer number (151680).

2^1055663 is an apocalyptic number.

1055663 is a deficient number, since it is larger than the sum of its proper divisors (157777).

1055663 is an equidigital number, since it uses as much as digits as its factorization.

1055663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 1055663 is about 1027.4546218690. The cubic root of 1055663 is about 101.8220336408.

The spelling of 1055663 in words is "one million, fifty-five thousand, six hundred sixty-three".