54551135504220 has 48 divisors (see below), whose sum is σ = 152854427406240. Its totient is φ = 14536374420736.

The previous prime is 54551135504197. The next prime is 54551135504267. The reversal of 54551135504220 is 2240553115545.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 331012155 + ... + 331176914.

It is an arithmetic number, because the mean of its divisors is an integer number (3184467237630).

Almost surely, 2^{54551135504220} is an apocalyptic number.

It is an amenable number.

54551135504220 is an abundant number, since it is smaller than the sum of its proper divisors (98303291902020).

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

54551135504220 is a wasteful number, since it uses less digits than its factorization.

54551135504220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662190454 (or 662190452 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 42.

Adding to 54551135504220 its reverse (2240553115545), we get a palindrome (56791688619765).

The spelling of 54551135504220 in words is "fifty-four trillion, five hundred fifty-one billion, one hundred thirty-five million, five hundred four thousand, two hundred twenty".