56448789 has 8 divisors (see below), whose sum is σ = 79692480. Its totient is φ = 35418816.

The previous prime is 56448779. The next prime is 56448793. The reversal of 56448789 is 98784465.

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

It is not a de Polignac number, because 56448789 - 2⁵ = 56448757 is a prime.

It is a super-3 number, since 3×56448789³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 1106839 = 56448789 / (5 + 6 + 4 + 4 + 8 + 7 + 8 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56448709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 553369 + ... + 553470.

It is an arithmetic number, because the mean of its divisors is an integer number (9961560).

Almost surely, 2^56448789 is an apocalyptic number.

It is an amenable number.

56448789 is a deficient number, since it is larger than the sum of its proper divisors (23243691).

56448789 is a wasteful number, since it uses less digits than its factorization.

56448789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106859.

The product of its digits is 1935360, while the sum is 51.

The square root of 56448789 is about 7513.2409118835. The cubic root of 56448789 is about 383.6055451941.

The spelling of 56448789 in words is "fifty-six million, four hundred forty-eight thousand, seven hundred eighty-nine".