1057555 has 8 divisors (see below), whose sum is σ = 1275552. Its totient is φ = 841728.

The previous prime is 1057541. The next prime is 1057561. The reversal of 1057555 is 5557501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1057555 is a prime.

It is a super-2 number, since 2×1057555² = 2236845156050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 874 + ... + 1696.

It is an arithmetic number, because the mean of its divisors is an integer number (159444).

2^1057555 is an apocalyptic number.

1057555 is a deficient number, since it is larger than the sum of its proper divisors (217997).

1057555 is an equidigital number, since it uses as much as digits as its factorization.

1057555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085.

The product of its (nonzero) digits is 4375, while the sum is 28.

The square root of 1057555 is about 1028.3749316276. The cubic root of 1057555 is about 101.8828271302.

The spelling of 1057555 in words is "one million, fifty-seven thousand, five hundred fifty-five".