55403568000 has 1024 divisors, whose sum is σ = 226841472000. Its totient is φ = 13178880000.

The previous prime is 55403567983. The next prime is 55403568007. The reversal of 55403568000 is 86530455.

55403568000 is a `hidden beast` number, since 5 + 540 + 35 + 6 + 80 + 0 + 0 = 666.

55403568000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55403568007) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 422927935 + ... + 422928065.

It is an arithmetic number, because the mean of its divisors is an integer number (221524875).

Almost surely, 2^55403568000 is an apocalyptic number.

55403568000 is a gapful number since it is divisible by the number (50) 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 55403568000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113420736000).

55403568000 is an abundant number, since it is smaller than the sum of its proper divisors (171437904000).

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

55403568000 is a wasteful number, since it uses less digits than its factorization.

55403568000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 55403568000 in words is "fifty-five billion, four hundred three million, five hundred sixty-eight thousand".