2106523056 has 80 divisors (see below), whose sum is σ = 5961761280. Its totient is φ = 635631360.

The previous prime is 2106523049. The next prime is 2106523093. The reversal of 2106523056 is 6503256012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117846 + ... + 134538.

It is an arithmetic number, because the mean of its divisors is an integer number (74522016).

Almost surely, 2^2106523056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2106523056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2980880640).

2106523056 is an abundant number, since it is smaller than the sum of its proper divisors (3855238224).

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

2106523056 is a wasteful number, since it uses less digits than its factorization.

2106523056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16954 (or 16948 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 2106523056 is about 45896.8741419282. The cubic root of 2106523056 is about 1281.9037134726.

Adding to 2106523056 its reverse (6503256012), we get a palindrome (8609779068).

The spelling of 2106523056 in words is "two billion, one hundred six million, five hundred twenty-three thousand, fifty-six".