55242769927500 has 90 divisors (see below), whose sum is σ = 174495951249620. Its totient is φ = 14731405308000.

The previous prime is 55242769927409. The next prime is 55242769927507. The reversal of 55242769927500 is 572996724255.

55242769927500 is a `hidden beast` number, since 5 + 5 + 2 + 4 + 276 + 99 + 275 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (90).

It is not an unprimeable number, because it can be changed into a prime (55242769927507) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1227594610 + ... + 1227639609.

Almost surely, 2^{55242769927500} is an apocalyptic number.

55242769927500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55242769927500 is an abundant number, since it is smaller than the sum of its proper divisors (119253181322120).

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

55242769927500 is a wasteful number, since it uses less digits than its factorization.

55242769927500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2455234249 (or 2455234229 counting only the distinct ones).

The product of its (nonzero) digits is 95256000, while the sum is 63.

The spelling of 55242769927500 in words is "fifty-five trillion, two hundred forty-two billion, seven hundred sixty-nine million, nine hundred twenty-seven thousand, five hundred".