56535578 has 8 divisors (see below), whose sum is σ = 92512800. Its totient is φ = 25697980.

The previous prime is 56535571. The next prime is 56535581. The reversal of 56535578 is 87553565.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56535571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1284878 + ... + 1284921.

It is an arithmetic number, because the mean of its divisors is an integer number (11564100).

Almost surely, 2^56535578 is an apocalyptic number.

56535578 is a deficient number, since it is larger than the sum of its proper divisors (35977222).

56535578 is a wasteful number, since it uses less digits than its factorization.

56535578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569812.

The product of its digits is 630000, while the sum is 44.

The square root of 56535578 is about 7519.0144300965. The cubic root of 56535578 is about 383.8020400730.

It can be divided in two parts, 5653557 and 8, that added together give a palindrome (5653565).

The spelling of 56535578 in words is "fifty-six million, five hundred thirty-five thousand, five hundred seventy-eight".