16634625 has 32 divisors (see below), whose sum is σ = 31639296. Its totient is φ = 7603200.

The previous prime is 16634581. The next prime is 16634647. The reversal of 16634625 is 52643661.

It is not a de Polignac number, because 16634625 - 2¹⁴ = 16618241 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 544 + ... + 5793.

It is an arithmetic number, because the mean of its divisors is an integer number (988728).

Almost surely, 2^16634625 is an apocalyptic number.

16634625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16634625 is a deficient number, since it is larger than the sum of its proper divisors (15004671).

16634625 is an equidigital number, since it uses as much as digits as its factorization.

16634625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6362 (or 6352 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 16634625 is about 4078.5567300210. The cubic root of 16634625 is about 255.2726802436.

The spelling of 16634625 in words is "sixteen million, six hundred thirty-four thousand, six hundred twenty-five".