56803289 has 4 divisors (see below), whose sum is σ = 56988624. Its totient is φ = 56617956.

The previous prime is 56803283. The next prime is 56803321. The reversal of 56803289 is 98230865.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56803289 - 2¹⁶ = 56737753 is a prime.

It is a super-2 number, since 2×56803289² = 6453227282435042, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56803283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92207 + ... + 92820.

It is an arithmetic number, because the mean of its divisors is an integer number (14247156).

Almost surely, 2^56803289 is an apocalyptic number.

It is an amenable number.

56803289 is a deficient number, since it is larger than the sum of its proper divisors (185335).

56803289 is a wasteful number, since it uses less digits than its factorization.

56803289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185334.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 56803289 is about 7536.7956719020. The cubic root of 56803289 is about 384.4068879531.

The spelling of 56803289 in words is "fifty-six million, eight hundred three thousand, two hundred eighty-nine".