55250565443424 has 144 divisors (see below), whose sum is σ = 169221126935952. Its totient is φ = 16998539295744.

The previous prime is 55250565443419. The next prime is 55250565443429. The reversal of 55250565443424 is 42434456505255.

55250565443424 is a `hidden beast` number, since 5 + 5 + 2 + 5 + 0 + 56 + 544 + 3 + 42 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (55250565443419) and next prime (55250565443429).

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55250565443429) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38521627 + ... + 39930149.

It is an arithmetic number, because the mean of its divisors is an integer number (1175146714833).

Almost surely, 2^{55250565443424} 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 55250565443424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84610563467976).

55250565443424 is an abundant number, since it is smaller than the sum of its proper divisors (113970561492528).

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

55250565443424 is a wasteful number, since it uses less digits than its factorization.

55250565443424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419029 (or 1419018 counting only the distinct ones).

The product of its (nonzero) digits is 57600000, while the sum is 54.

The spelling of 55250565443424 in words is "fifty-five trillion, two hundred fifty billion, five hundred sixty-five million, four hundred forty-three thousand, four hundred twenty-four".