2152253515 has 4 divisors (see below), whose sum is σ = 2582704224. Its totient is φ = 1721802808.

The previous prime is 2152253489. The next prime is 2152253539. The reversal of 2152253515 is 5153522512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2152253515 - 2¹⁹ = 2151729227 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215225347 + ... + 215225356.

It is an arithmetic number, because the mean of its divisors is an integer number (645676056).

Almost surely, 2^2152253515 is an apocalyptic number.

2152253515 is a deficient number, since it is larger than the sum of its proper divisors (430450709).

2152253515 is an equidigital number, since it uses as much as digits as its factorization.

2152253515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430450708.

The product of its digits is 15000, while the sum is 31.

The square root of 2152253515 is about 46392.3863904413. The cubic root of 2152253515 is about 1291.1136578159.

The spelling of 2152253515 in words is "two billion, one hundred fifty-two million, two hundred fifty-three thousand, five hundred fifteen".