2152515924 has 96 divisors (see below), whose sum is σ = 6123479040. Its totient is φ = 649793664.

The previous prime is 2152515913. The next prime is 2152515929. The reversal of 2152515924 is 4295152512.

2152515924 is a `hidden beast` number, since 2 + 1 + 52 + 515 + 92 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152515929) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 59949 + ... + 88875.

It is an arithmetic number, because the mean of its divisors is an integer number (63786240).

Almost surely, 2^2152515924 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 2152515924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3061739520).

2152515924 is an abundant number, since it is smaller than the sum of its proper divisors (3970963116).

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

2152515924 is a wasteful number, since it uses less digits than its factorization.

2152515924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29006 (or 28998 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 2152515924 is about 46395.2144514927. The cubic root of 2152515924 is about 1291.1661277926.

The spelling of 2152515924 in words is "two billion, one hundred fifty-two million, five hundred fifteen thousand, nine hundred twenty-four".