18250055424 has 216 divisors, whose sum is σ = 57639450960. Its totient is φ = 5527732224.

The previous prime is 18250055393. The next prime is 18250055437. The reversal of 18250055424 is 42455005281.

18250055424 is a `hidden beast` number, since 1 + 82 + 5 + 0 + 0 + 554 + 24 = 666.

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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1127839 + ... + 1143905.

It is an arithmetic number, because the mean of its divisors is an integer number (266849310).

Almost surely, 2^18250055424 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 18250055424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28819725480).

18250055424 is an abundant number, since it is smaller than the sum of its proper divisors (39389395536).

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

18250055424 is a wasteful number, since it uses less digits than its factorization.

18250055424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16135 (or 16118 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

The spelling of 18250055424 in words is "eighteen billion, two hundred fifty million, fifty-five thousand, four hundred twenty-four".