56002555578 has 16 divisors (see below), whose sum is σ = 112233233376. Its totient is φ = 18629498160.

The previous prime is 56002555577. The next prime is 56002555597. The reversal of 56002555578 is 87555520065.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56002555573) 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, 9501901 + ... + 9507792.

It is an arithmetic number, because the mean of its divisors is an integer number (7014577086).

Almost surely, 2^56002555578 is an apocalyptic number.

56002555578 is an abundant number, since it is smaller than the sum of its proper divisors (56230677798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56002555578 is a wasteful number, since it uses less digits than its factorization.

56002555578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19010189.

The product of its (nonzero) digits is 2100000, while the sum is 48.

The spelling of 56002555578 in words is "fifty-six billion, two million, five hundred fifty-five thousand, five hundred seventy-eight".