56005920029900 has 36 divisors (see below), whose sum is σ = 126816883272912. Its totient is φ = 21428352010560.

The previous prime is 56005920029797. The next prime is 56005920029911. The reversal of 56005920029900 is 992002950065.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12175197707 + ... + 12175202306.

Almost surely, 2^{56005920029900} is an apocalyptic number.

56005920029900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56005920029900 is an abundant number, since it is smaller than the sum of its proper divisors (70810963243012).

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

56005920029900 is a wasteful number, since it uses less digits than its factorization.

56005920029900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24350400050 (or 24350400043 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 47.

Adding to 56005920029900 its reverse (992002950065), we get a palindrome (56997922979965).

The spelling of 56005920029900 in words is "fifty-six trillion, five billion, nine hundred twenty million, twenty-nine thousand, nine hundred".