56555515050 has 96 divisors (see below), whose sum is σ = 143110126080. Its totient is φ = 14777380800.

The previous prime is 56555515031. The next prime is 56555515103. The reversal of 56555515050 is 5051555565.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 56555514993 and 56555515011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1719661 + ... + 1752239.

It is an arithmetic number, because the mean of its divisors is an integer number (1490730480).

Almost surely, 2^56555515050 is an apocalyptic number.

56555515050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 56555515050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71555063040).

56555515050 is an abundant number, since it is smaller than the sum of its proper divisors (86554611030).

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

56555515050 is a wasteful number, since it uses less digits than its factorization.

56555515050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32828 (or 32823 counting only the distinct ones).

The product of its (nonzero) digits is 468750, while the sum is 42.

The spelling of 56555515050 in words is "fifty-six billion, five hundred fifty-five million, five hundred fifteen thousand, fifty".