2216523450 has 48 divisors (see below), whose sum is σ = 5587115616. Its totient is φ = 581380800.

The previous prime is 2216523433. The next prime is 2216523457. The reversal of 2216523450 is 543256122.

2216523450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2216523457) 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, 111972 + ... + 130271.

It is an arithmetic number, because the mean of its divisors is an integer number (116398242).

Almost surely, 2^2216523450 is an apocalyptic number.

2216523450 is an abundant number, since it is smaller than the sum of its proper divisors (3370592166).

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

2216523450 is a wasteful number, since it uses less digits than its factorization.

2216523450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242319 (or 242314 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 2216523450 is about 47079.9686703379. The cubic root of 2216523450 is about 1303.8394285360.

Adding to 2216523450 its reverse (543256122), we get a palindrome (2759779572).

The spelling of 2216523450 in words is "two billion, two hundred sixteen million, five hundred twenty-three thousand, four hundred fifty".