55435943735424 has 640 divisors, whose sum is σ = 190916198161920. Its totient is φ = 15640345313280.

The previous prime is 55435943735411. The next prime is 55435943735443. The reversal of 55435943735424 is 42453734953455.

55435943735424 is a `hidden beast` number, since 5 + 5 + 4 + 3 + 59 + 4 + 37 + 3 + 542 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

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, 3217212889 + ... + 3217230119.

It is an arithmetic number, because the mean of its divisors is an integer number (298306559628).

Almost surely, 2^{55435943735424} is an apocalyptic number.

55435943735424 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 55435943735424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95458099080960).

55435943735424 is an abundant number, since it is smaller than the sum of its proper divisors (135480254426496).

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

55435943735424 is a wasteful number, since it uses less digits than its factorization.

55435943735424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17818 (or 17797 counting only the distinct ones).

The product of its digits is 544320000, while the sum is 63.

The spelling of 55435943735424 in words is "fifty-five trillion, four hundred thirty-five billion, nine hundred forty-three million, seven hundred thirty-five thousand, four hundred twenty-four".