10557887 has 4 divisors (see below), whose sum is σ = 10898496. Its totient is φ = 10217280.

The previous prime is 10557871. The next prime is 10557893. The reversal of 10557887 is 78875501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10557887 - 2⁴ = 10557871 is a prime.

It is a super-2 number, since 2×10557887² = 222937955809538, 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 (10557857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170258 + ... + 170319.

It is an arithmetic number, because the mean of its divisors is an integer number (2724624).

Almost surely, 2^10557887 is an apocalyptic number.

10557887 is a deficient number, since it is larger than the sum of its proper divisors (340609).

10557887 is an equidigital number, since it uses as much as digits as its factorization.

10557887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340608.

The product of its (nonzero) digits is 78400, while the sum is 41.

The square root of 10557887 is about 3249.2902301887. The cubic root of 10557887 is about 219.3776280451.

The spelling of 10557887 in words is "ten million, five hundred fifty-seven thousand, eight hundred eighty-seven".