16945725 has 12 divisors (see below), whose sum is σ = 28017056. Its totient is φ = 9037680.

The previous prime is 16945717. The next prime is 16945727. The reversal of 16945725 is 52754961.

It is not a de Polignac number, because 16945725 - 2³ = 16945717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16945727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112897 + ... + 113046.

Almost surely, 2^16945725 is an apocalyptic number.

16945725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16945725 is a deficient number, since it is larger than the sum of its proper divisors (11071331).

16945725 is a wasteful number, since it uses less digits than its factorization.

16945725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225956 (or 225951 counting only the distinct ones).

The product of its digits is 75600, while the sum is 39.

The square root of 16945725 is about 4116.5185533409. The cubic root of 16945725 is about 256.8542275162.

The spelling of 16945725 in words is "sixteen million, nine hundred forty-five thousand, seven hundred twenty-five".