16377225 has 12 divisors (see below), whose sum is σ = 27077136. Its totient is φ = 8734480.

The previous prime is 16377217. The next prime is 16377233. The reversal of 16377225 is 52277361.

It is an interprime number because it is at equal distance from previous prime (16377217) and next prime (16377233).

It is not a de Polignac number, because 16377225 - 2³ = 16377217 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109107 + ... + 109256.

It is an arithmetic number, because the mean of its divisors is an integer number (2256428).

Almost surely, 2^16377225 is an apocalyptic number.

16377225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16377225 is a deficient number, since it is larger than the sum of its proper divisors (10699911).

16377225 is a wasteful number, since it uses less digits than its factorization.

16377225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218376 (or 218371 counting only the distinct ones).

The product of its digits is 17640, while the sum is 33.

The square root of 16377225 is about 4046.8784266395. The cubic root of 16377225 is about 253.9491548876.

The spelling of 16377225 in words is "sixteen million, three hundred seventy-seven thousand, two hundred twenty-five".