54521754534 has 128 divisors (see below), whose sum is σ = 131580288000. Its totient is φ = 16635041280.

The previous prime is 54521754499. The next prime is 54521754611. The reversal of 54521754534 is 43545712545.

54521754534 is a `hidden beast` number, since 5 + 4 + 52 + 17 + 54 + 534 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 54521754534.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 61885774 + ... + 61886654.

It is an arithmetic number, because the mean of its divisors is an integer number (1027971000).

Almost surely, 2^54521754534 is an apocalyptic number.

54521754534 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 54521754534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65790144000).

54521754534 is an abundant number, since it is smaller than the sum of its proper divisors (77058533466).

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

54521754534 is a wasteful number, since it uses less digits than its factorization.

54521754534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547 (or 1541 counting only the distinct ones).

The product of its digits is 1680000, while the sum is 45.

The spelling of 54521754534 in words is "fifty-four billion, five hundred twenty-one million, seven hundred fifty-four thousand, five hundred thirty-four".