16258725 has 120 divisors (see below), whose sum is σ = 36489728. Its totient is φ = 6998400.

The previous prime is 16258643. The next prime is 16258727. The reversal of 16258725 is 52785261.

It is a happy number.

16258725 is a `hidden beast` number, since 1 + 625 + 8 + 7 + 25 = 666.

16258725 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16258725 - 2¹⁰ = 16257701 is a prime.

It is a super-2 number, since 2×16258725² = 528692277251250, which contains 22 as substring.

16258725 is strictly pandigital in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 16258725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16258727) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 439407 + ... + 439443.

Almost surely, 2^16258725 is an apocalyptic number.

16258725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16258725 is an abundant number, since it is smaller than the sum of its proper divisors (20231003).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16258725 is a wasteful number, since it uses less digits than its factorization.

16258725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 83 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 16258725 is about 4032.2109319826. The cubic root of 16258725 is about 253.3351752328.

The spelling of 16258725 in words is "sixteen million, two hundred fifty-eight thousand, seven hundred twenty-five".