56228489 has 4 divisors (see below), whose sum is σ = 56409600. Its totient is φ = 56047380.

The previous prime is 56228449. The next prime is 56228531. The reversal of 56228489 is 98482265.

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 56228489 - 2⁸ = 56228233 is a prime.

It is a super-3 number, since 3×56228489³ (a number of 24 digits) contains 333 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 (56228449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90089 + ... + 90710.

It is an arithmetic number, because the mean of its divisors is an integer number (14102400).

Almost surely, 2^56228489 is an apocalyptic number.

It is an amenable number.

56228489 is a deficient number, since it is larger than the sum of its proper divisors (181111).

56228489 is a wasteful number, since it uses less digits than its factorization.

56228489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181110.

The product of its digits is 276480, while the sum is 44.

The square root of 56228489 is about 7498.5657962040. The cubic root of 56228489 is about 383.1058682444.

The spelling of 56228489 in words is "fifty-six million, two hundred twenty-eight thousand, four hundred eighty-nine".