2152520 has 16 divisors (see below), whose sum is σ = 4843260. Its totient is φ = 860992.

The previous prime is 2152517. The next prime is 2152559. The reversal of 2152520 is 252512.

It can be written as a sum of positive squares in 2 ways, for example, as 2149156 + 3364 = 1466^2 + 58^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26867 + ... + 26946.

2^2152520 is an apocalyptic number.

2152520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2152520 is an abundant number, since it is smaller than the sum of its proper divisors (2690740).

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

2152520 is a wasteful number, since it uses less digits than its factorization.

2152520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53824 (or 53820 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 2152520 is about 1467.1468910781. The cubic root of 2152520 is about 129.1166942775.

The spelling of 2152520 in words is "two million, one hundred fifty-two thousand, five hundred twenty".