215025 has 24 divisors (see below), whose sum is σ = 369024. Its totient is φ = 110400.

The previous prime is 214993. The next prime is 215051. The reversal of 215025 is 520512.

It is not a de Polignac number, because 215025 - 2⁵ = 214993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 214995 and 215013.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 215025.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 3495 + ... + 3555.

It is an arithmetic number, because the mean of its divisors is an integer number (15376).

2²¹⁵⁰²⁵ is an apocalyptic number.

215025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

215025 is a deficient number, since it is larger than the sum of its proper divisors (153999).

215025 is a wasteful number, since it uses less digits than its factorization.

215025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 215025 is about 463.7078821845. The cubic root of 215025 is about 59.9095860459.

Adding to 215025 its reverse (520512), we get a palindrome (735537).

The spelling of 215025 in words is "two hundred fifteen thousand, twenty-five".