54120633235512 has 128 divisors (see below), whose sum is σ = 140265649339200. Its totient is φ = 17387583897600.

The previous prime is 54120633235363. The next prime is 54120633235531. The reversal of 54120633235512 is 21553233602145.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 433662562 + ... + 433787342.

Almost surely, 2^{54120633235512} 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 54120633235512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70132824669600).

54120633235512 is an abundant number, since it is smaller than the sum of its proper divisors (86145016103688).

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

54120633235512 is a wasteful number, since it uses less digits than its factorization.

54120633235512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129417 (or 129413 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

Adding to 54120633235512 its reverse (21553233602145), we get a palindrome (75673866837657).

The spelling of 54120633235512 in words is "fifty-four trillion, one hundred twenty billion, six hundred thirty-three million, two hundred thirty-five thousand, five hundred twelve".