55565310528 has 280 divisors, whose sum is σ = 202725397952. Its totient is φ = 14654462976.

The previous prime is 55565310473. The next prime is 55565310569. The reversal of 55565310528 is 82501356555.

It is a happy number.

55565310528 is a `hidden beast` number, since 5 + 5 + 565 + 31 + 0 + 52 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 412851 + ... + 530637.

Almost surely, 2^55565310528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55565310528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101362698976).

55565310528 is an abundant number, since it is smaller than the sum of its proper divisors (147160087424).

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

55565310528 is a wasteful number, since it uses less digits than its factorization.

55565310528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117831 (or 117812 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 45.

The spelling of 55565310528 in words is "fifty-five billion, five hundred sixty-five million, three hundred ten thousand, five hundred twenty-eight".