54655806420 has 144 divisors (see below), whose sum is σ = 171872064000. Its totient is φ = 14042278656.

The previous prime is 54655806419. The next prime is 54655806427. The reversal of 54655806420 is 2460855645.

54655806420 is a `hidden beast` number, since 5 + 4 + 6 + 5 + 580 + 64 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54655806427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2489451 + ... + 2511309.

It is an arithmetic number, because the mean of its divisors is an integer number (1193556000).

Almost surely, 2^54655806420 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 54655806420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85936032000).

54655806420 is an abundant number, since it is smaller than the sum of its proper divisors (117216257580).

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

54655806420 is a wasteful number, since it uses less digits than its factorization.

54655806420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22382 (or 22377 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 45.

The spelling of 54655806420 in words is "fifty-four billion, six hundred fifty-five million, eight hundred six thousand, four hundred twenty".