2115594450 has 108 divisors (see below), whose sum is σ = 5903123850. Its totient is φ = 564071040.

The previous prime is 2115594449. The next prime is 2115594469. The reversal of 2115594450 is 544955112.

2115594450 is a `hidden beast` number, since 2 + 1 + 15 + 594 + 4 + 50 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 2006412849 + 109181601 = 44793^2 + 10449^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 324826 + ... + 331274.

Almost surely, 2^2115594450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2115594450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2951561925).

2115594450 is an abundant number, since it is smaller than the sum of its proper divisors (3787529400).

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

2115594450 is an frugal number, since it uses more digits than its factorization.

2115594450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6485 (or 6459 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 2115594450 is about 45995.5916365906. The cubic root of 2115594450 is about 1283.7411806914.

The spelling of 2115594450 in words is "two billion, one hundred fifteen million, five hundred ninety-four thousand, four hundred fifty".