215150925 has 48 divisors (see below), whose sum is σ = 389975040. Its totient is φ = 103800000.

The previous prime is 215150909. The next prime is 215150933. The reversal of 215150925 is 529051512.

It is not a de Polignac number, because 215150925 - 2⁴ = 215150909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 215150892 and 215150901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 206556 + ... + 207594.

It is an arithmetic number, because the mean of its divisors is an integer number (8124480).

Almost surely, 2^215150925 is an apocalyptic number.

215150925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

215150925 is a deficient number, since it is larger than the sum of its proper divisors (174824115).

215150925 is a wasteful number, since it uses less digits than its factorization.

215150925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314 (or 1309 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 215150925 is about 14668.0238955355. The cubic root of 215150925 is about 599.2127870558.

The spelling of 215150925 in words is "two hundred fifteen million, one hundred fifty thousand, nine hundred twenty-five".