54260561520 has 120 divisors (see below), whose sum is σ = 198790995312. Its totient is φ = 13154073600.

The previous prime is 54260561519. The next prime is 54260561543. The reversal of 54260561520 is 2516506245.

54260561520 is a `hidden beast` number, since 5 + 42 + 6 + 0 + 561 + 52 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3417621 + ... + 3433460.

Almost surely, 2^54260561520 is an apocalyptic number.

It is an amenable number.

54260561520 is an abundant number, since it is smaller than the sum of its proper divisors (144530433792).

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

54260561520 is a wasteful number, since it uses less digits than its factorization.

54260561520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6851111 (or 6851102 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 54260561520 in words is "fifty-four billion, two hundred sixty million, five hundred sixty-one thousand, five hundred twenty".