55730104920 has 1024 divisors, whose sum is σ = 234455040000. Its totient is φ = 11735539200.

The previous prime is 55730104909. The next prime is 55730104931. The reversal of 55730104920 is 2940103755.

55730104920 is a `hidden beast` number, since 557 + 3 + 0 + 10 + 4 + 92 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (55730104909) and next prime (55730104931).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 264123615 + ... + 264123825.

It is an arithmetic number, because the mean of its divisors is an integer number (228960000).

Almost surely, 2^55730104920 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 55730104920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117227520000).

55730104920 is an abundant number, since it is smaller than the sum of its proper divisors (178724935080).

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

55730104920 is a wasteful number, since it uses less digits than its factorization.

55730104920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The spelling of 55730104920 in words is "fifty-five billion, seven hundred thirty million, one hundred four thousand, nine hundred twenty".