215132025 has 24 divisors (see below), whose sum is σ = 376609824. Its totient is φ = 107987200.

The previous prime is 215132017. The next prime is 215132039. The reversal of 215132025 is 520231512.

It is not a de Polignac number, because 215132025 - 2³ = 215132017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 215131992 and 215132010.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83091 + ... + 85640.

It is an arithmetic number, because the mean of its divisors is an integer number (15692076).

Almost surely, 2^215132025 is an apocalyptic number.

215132025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

215132025 is a deficient number, since it is larger than the sum of its proper divisors (161477799).

215132025 is a wasteful number, since it uses less digits than its factorization.

215132025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168761 (or 168756 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 215132025 is about 14667.3796228229. The cubic root of 215132025 is about 599.1952405307.

Adding to 215132025 its reverse (520231512), we get a palindrome (735363537).

The spelling of 215132025 in words is "two hundred fifteen million, one hundred thirty-two thousand, twenty-five".