55424242456 has 64 divisors (see below), whose sum is σ = 118472958720. Its totient is φ = 24061614720.

The previous prime is 55424242421. The next prime is 55424242483. The reversal of 55424242456 is 65424242455.

55424242456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1362346 + ... + 1402438.

It is an arithmetic number, because the mean of its divisors is an integer number (1851139980).

Almost surely, 2^55424242456 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 55424242456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59236479360).

55424242456 is an abundant number, since it is smaller than the sum of its proper divisors (63048716264).

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

55424242456 is a wasteful number, since it uses less digits than its factorization.

55424242456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40816 (or 40812 counting only the distinct ones).

The product of its digits is 1536000, while the sum is 43.

Subtracting 55424242456 from its reverse (65424242455), we obtain a palindrome (9999999999).

The spelling of 55424242456 in words is "fifty-five billion, four hundred twenty-four million, two hundred forty-two thousand, four hundred fifty-six".