2153520324 has 192 divisors, whose sum is σ = 5977466880. Its totient is φ = 669513600.

The previous prime is 2153520269. The next prime is 2153520371. The reversal of 2153520324 is 4230253512.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14261649 + ... + 14261799.

It is an arithmetic number, because the mean of its divisors is an integer number (31132640).

Almost surely, 2^2153520324 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 2153520324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2988733440).

2153520324 is an abundant number, since it is smaller than the sum of its proper divisors (3823946556).

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

2153520324 is a wasteful number, since it uses less digits than its factorization.

2153520324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2153520324 is about 46406.0375813320. The cubic root of 2153520324 is about 1291.3669231482.

Adding to 2153520324 its reverse (4230253512), we get a palindrome (6383773836).

The spelling of 2153520324 in words is "two billion, one hundred fifty-three million, five hundred twenty thousand, three hundred twenty-four".