55703531520 has 1456 divisors, whose sum is σ = 252682782912. Its totient is φ = 11466178560.

The previous prime is 55703531519. The next prime is 55703531539. The reversal of 55703531520 is 2513530755.

55703531520 is a `hidden beast` number, since 5 + 5 + 70 + 3 + 531 + 52 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1456).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 1358622700 + ... + 1358622740.

Almost surely, 2^55703531520 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 55703531520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126341391456).

55703531520 is an abundant number, since it is smaller than the sum of its proper divisors (196979251392).

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

55703531520 is an equidigital number, since it uses as much as digits as its factorization.

55703531520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 78750, while the sum is 36.

The spelling of 55703531520 in words is "fifty-five billion, seven hundred three million, five hundred thirty-one thousand, five hundred twenty".