7215252353 has 8 divisors (see below), whose sum is σ = 7683842088. Its totient is φ = 6751569664.

The previous prime is 7215252349. The next prime is 7215252379. The reversal of 7215252353 is 3532525127.

It can be written as a sum of positive squares in 4 ways, for example, as 1079976769 + 6135275584 = 32863^2 + 78328^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7215252353 - 2² = 7215252349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7215251353) 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 7 ways as a sum of consecutive naturals, for example, 1223726 + ... + 1229607.

It is an arithmetic number, because the mean of its divisors is an integer number (960480261).

Almost surely, 2^7215252353 is an apocalyptic number.

It is an amenable number.

7215252353 is a deficient number, since it is larger than the sum of its proper divisors (468589735).

7215252353 is a wasteful number, since it uses less digits than its factorization.

7215252353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2453523.

The product of its digits is 63000, while the sum is 35.

The square root of 7215252353 is about 84942.6415471052. The cubic root of 7215252353 is about 1932.3413246474.

The spelling of 7215252353 in words is "seven billion, two hundred fifteen million, two hundred fifty-two thousand, three hundred fifty-three".