2213661524 has 12 divisors (see below), whose sum is σ = 4007490900. Its totient is φ = 1068664128.

The previous prime is 2213661523. The next prime is 2213661539. The reversal of 2213661524 is 4251663122.

2213661524 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 443944900 + 1769716624 = 21070^2 + 42068^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213661523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9541529 + ... + 9541760.

It is an arithmetic number, because the mean of its divisors is an integer number (333957575).

Almost surely, 2^2213661524 is an apocalyptic number.

It is an amenable number.

2213661524 is a deficient number, since it is larger than the sum of its proper divisors (1793829376).

2213661524 is a wasteful number, since it uses less digits than its factorization.

2213661524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19083322 (or 19083320 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 2213661524 is about 47049.5645463377. The cubic root of 2213661524 is about 1303.2780239755.

The spelling of 2213661524 in words is "two billion, two hundred thirteen million, six hundred sixty-one thousand, five hundred twenty-four".