215034225 has 24 divisors (see below), whose sum is σ = 406313280. Its totient is φ = 98301120.

The previous prime is 215034203. The next prime is 215034247. The reversal of 215034225 is 522430512.

It is an interprime number because it is at equal distance from previous prime (215034203) and next prime (215034247).

It is not a de Polignac number, because 215034225 - 2⁶ = 215034161 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 215034195 and 215034204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 204270 + ... + 205319.

It is an arithmetic number, because the mean of its divisors is an integer number (16929720).

Almost surely, 2^215034225 is an apocalyptic number.

215034225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

215034225 is a deficient number, since it is larger than the sum of its proper divisors (191279055).

215034225 is a wasteful number, since it uses less digits than its factorization.

215034225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409609 (or 409604 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 215034225 is about 14664.0453149873. The cubic root of 215034225 is about 599.1044278047.

Adding to 215034225 its reverse (522430512), we get a palindrome (737464737).

The spelling of 215034225 in words is "two hundred fifteen million, thirty-four thousand, two hundred twenty-five".