56128319 has 8 divisors (see below), whose sum is σ = 60504192. Its totient is φ = 51760800.

The previous prime is 56128309. The next prime is 56128327. The reversal of 56128319 is 91382165.

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

It is not a de Polignac number, because 56128319 - 2⁸ = 56128063 is a prime.

It is a super-2 number, since 2×56128319² = 6300776387531522, 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 (56128309) 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, 24257 + ... + 26469.

It is an arithmetic number, because the mean of its divisors is an integer number (7563024).

Almost surely, 2^56128319 is an apocalyptic number.

56128319 is a deficient number, since it is larger than the sum of its proper divisors (4375873).

56128319 is a wasteful number, since it uses less digits than its factorization.

56128319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4177.

The product of its digits is 12960, while the sum is 35.

The square root of 56128319 is about 7491.8835415401. The cubic root of 56128319 is about 382.8782343728.

It can be divided in two parts, 5612 and 8319, that added together give a palindrome (13931).

The spelling of 56128319 in words is "fifty-six million, one hundred twenty-eight thousand, three hundred nineteen".