55364642424 has 320 divisors, whose sum is σ = 202088779200. Its totient is φ = 13742493696.

The previous prime is 55364642401. The next prime is 55364642471. The reversal of 55364642424 is 42424646355.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 55364642424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 974842 + ... + 1030070.

It is an arithmetic number, because the mean of its divisors is an integer number (631527435).

Almost surely, 2^55364642424 is an apocalyptic number.

55364642424 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55364642424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101044389600).

55364642424 is an abundant number, since it is smaller than the sum of its proper divisors (146724136776).

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

55364642424 is a wasteful number, since it uses less digits than its factorization.

55364642424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55284 (or 55271 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 45.

The spelling of 55364642424 in words is "fifty-five billion, three hundred sixty-four million, six hundred forty-two thousand, four hundred twenty-four".