16493225 has 24 divisors (see below), whose sum is σ = 23688960. Its totient is φ = 11157120.

The previous prime is 16493221. The next prime is 16493227. The reversal of 16493225 is 52239461.

It is a happy number.

It is not a de Polignac number, because 16493225 - 2² = 16493221 is a prime.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 16493191 and 16493200.

It is not an unprimeable number, because it can be changed into a prime (16493221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13229 + ... + 14421.

It is an arithmetic number, because the mean of its divisors is an integer number (987040).

Almost surely, 2^16493225 is an apocalyptic number.

It is an amenable number.

16493225 is a deficient number, since it is larger than the sum of its proper divisors (7195735).

16493225 is a wasteful number, since it uses less digits than its factorization.

16493225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289 (or 1284 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 16493225 is about 4061.1851718433. The cubic root of 16493225 is about 254.5473193857.

The spelling of 16493225 in words is "sixteen million, four hundred ninety-three thousand, two hundred twenty-five".