2113555200 has 432 divisors, whose sum is σ = 7445523456. Its totient is φ = 527155200.

The previous prime is 2113555127. The next prime is 2113555211. The reversal of 2113555200 is 25553112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31545567 + ... + 31545633.

It is an arithmetic number, because the mean of its divisors is an integer number (17235008).

Almost surely, 2^2113555200 is an apocalyptic number.

2113555200 is a gapful number since it is divisible by the number (20) 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 2113555200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3722761728).

2113555200 is an abundant number, since it is smaller than the sum of its proper divisors (5331968256).

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

2113555200 is a wasteful number, since it uses less digits than its factorization.

2113555200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 2113555200 is about 45973.4184067272. The cubic root of 2113555200 is about 1283.3285762834.

The spelling of 2113555200 in words is "two billion, one hundred thirteen million, five hundred fifty-five thousand, two hundred".