56128330 has 16 divisors (see below), whose sum is σ = 103381344. Its totient is φ = 21929040.

The previous prime is 56128327. The next prime is 56128363. The reversal of 56128330 is 3382165.

56128330 = T₁₈₄ + T₁₈₅ + ... + T₆₉₉.

56128330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 64836 + ... + 65695.

It is an arithmetic number, because the mean of its divisors is an integer number (6461334).

Almost surely, 2^56128330 is an apocalyptic number.

56128330 is a deficient number, since it is larger than the sum of its proper divisors (47253014).

56128330 is a wasteful number, since it uses less digits than its factorization.

56128330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130581.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 56128330 is about 7491.8842756679. The cubic root of 56128330 is about 382.8782593849.

The spelling of 56128330 in words is "fifty-six million, one hundred twenty-eight thousand, three hundred thirty".