215325051 has 8 divisors (see below), whose sum is σ = 287178240. Its totient is φ = 143510952.

The previous prime is 215325017. The next prime is 215325053. The reversal of 215325051 is 150523512.

It is a happy number.

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

It is not a de Polignac number, because 215325051 - 2⁹ = 215324539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215325053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7390 + ... + 22028.

It is an arithmetic number, because the mean of its divisors is an integer number (35897280).

Almost surely, 2^215325051 is an apocalyptic number.

215325051 is a deficient number, since it is larger than the sum of its proper divisors (71853189).

215325051 is a wasteful number, since it uses less digits than its factorization.

215325051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19545.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 215325051 is about 14673.9582594472. The cubic root of 215325051 is about 599.3743951465.

Adding to 215325051 its reverse (150523512), we get a palindrome (365848563).

The spelling of 215325051 in words is "two hundred fifteen million, three hundred twenty-five thousand, fifty-one".