56155503200 has 144 divisors (see below), whose sum is σ = 144960721920. Its totient is φ = 21183275520.

The previous prime is 56155503199. The next prime is 56155503203. The reversal of 56155503200 is 230555165.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56155503203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3381317 + ... + 3397883.

It is an arithmetic number, because the mean of its divisors is an integer number (1006671680).

Almost surely, 2^56155503200 is an apocalyptic number.

56155503200 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 56155503200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72480360960).

56155503200 is an abundant number, since it is smaller than the sum of its proper divisors (88805218720).

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

56155503200 is a wasteful number, since it uses less digits than its factorization.

56155503200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16829 (or 16816 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 32.

The spelling of 56155503200 in words is "fifty-six billion, one hundred fifty-five million, five hundred three thousand, two hundred".