2115528600 has 96 divisors (see below), whose sum is σ = 6565919040. Its totient is φ = 563472000.

The previous prime is 2115528599. The next prime is 2115528677. The reversal of 2115528600 is 68255112.

It is a super-2 number, since 2×2115528600² = 8950922514835920000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 23 ways as a sum of consecutive naturals, for example, 701095 + ... + 704105.

It is an arithmetic number, because the mean of its divisors is an integer number (68394990).

Almost surely, 2^2115528600 is an apocalyptic number.

2115528600 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 2115528600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3282959520).

2115528600 is an abundant number, since it is smaller than the sum of its proper divisors (4450390440).

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

2115528600 is a wasteful number, since it uses less digits than its factorization.

2115528600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4201 (or 4192 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 2115528600 is about 45994.8758015499. The cubic root of 2115528600 is about 1283.7278613091.

The spelling of 2115528600 in words is "two billion, one hundred fifteen million, five hundred twenty-eight thousand, six hundred".