2152521532 has 48 divisors (see below), whose sum is σ = 4391976960. Its totient is φ = 904056192.

The previous prime is 2152521523. The next prime is 2152521551. The reversal of 2152521532 is 2351252512.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 2152521532.

It is a congruent number.

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, 299493 + ... + 306595.

It is an arithmetic number, because the mean of its divisors is an integer number (91499520).

Almost surely, 2^2152521532 is an apocalyptic number.

It is an amenable number.

2152521532 is an abundant number, since it is smaller than the sum of its proper divisors (2239455428).

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

2152521532 is a wasteful number, since it uses less digits than its factorization.

2152521532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7330 (or 7328 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 2152521532 is about 46395.2748887212. The cubic root of 2152521532 is about 1291.1672490934.

The spelling of 2152521532 in words is "two billion, one hundred fifty-two million, five hundred twenty-one thousand, five hundred thirty-two".