56032578 has 144 divisors (see below), whose sum is σ = 155094264. Its totient is φ = 14515200.

The previous prime is 56032573. The next prime is 56032579. The reversal of 56032578 is 87523065.

56032578 is a `hidden beast` number, since 56 + 0 + 32 + 578 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 51883209 + 4149369 = 7203^2 + 2037^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56032573) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 554728 + ... + 554828.

Almost surely, 2^56032578 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56032578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77547132).

56032578 is an abundant number, since it is smaller than the sum of its proper divisors (99061686).

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

56032578 is a wasteful number, since it uses less digits than its factorization.

56032578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 56032578 is about 7485.4911662495. The cubic root of 56032578 is about 382.6604120202.

The spelling of 56032578 in words is "fifty-six million, thirty-two thousand, five hundred seventy-eight".