54205515135504 has 120 divisors (see below), whose sum is σ = 153446460092640. Its totient is φ = 17861352477696.

The previous prime is 54205515135487. The next prime is 54205515135623. The reversal of 54205515135504 is 40553151550245.

54205515135504 is a `hidden beast` number, since 5 + 4 + 2 + 0 + 5 + 5 + 1 + 5 + 135 + 504 = 666.

It is a super-2 number, since 2×54205515135504² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54205515135504.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1772347 + ... + 10561829.

It is an arithmetic number, because the mean of its divisors is an integer number (1278720500772).

Almost surely, 2^{54205515135504} 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 54205515135504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76723230046320).

54205515135504 is an abundant number, since it is smaller than the sum of its proper divisors (99240944957136).

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

54205515135504 is a wasteful number, since it uses less digits than its factorization.

54205515135504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8789989 (or 8789980 counting only the distinct ones).

The product of its (nonzero) digits is 1500000, while the sum is 45.

Adding to 54205515135504 its reverse (40553151550245), we get a palindrome (94758666685749).

The spelling of 54205515135504 in words is "fifty-four trillion, two hundred five billion, five hundred fifteen million, one hundred thirty-five thousand, five hundred four".