16393725 has 48 divisors (see below), whose sum is σ = 30504000. Its totient is φ = 8631360.

The previous prime is 16393717. The next prime is 16393739. The reversal of 16393725 is 52739361.

It is not a de Polignac number, because 16393725 - 2³ = 16393717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16393725.

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, 100494 + ... + 100656.

It is an arithmetic number, because the mean of its divisors is an integer number (635500).

Almost surely, 2^16393725 is an apocalyptic number.

16393725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16393725 is a deficient number, since it is larger than the sum of its proper divisors (14110275).

16393725 is a wasteful number, since it uses less digits than its factorization.

16393725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 320 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 16393725 is about 4048.9165217376. The cubic root of 16393725 is about 254.0344105735.

The spelling of 16393725 in words is "sixteen million, three hundred ninety-three thousand, seven hundred twenty-five".