16251925 has 12 divisors (see below), whose sum is σ = 20484676. Its totient is φ = 12787200.

The previous prime is 16251923. The next prime is 16251929. The reversal of 16251925 is 52915261.

It can be written as a sum of positive squares in 6 ways, for example, as 7064964 + 9186961 = 2658^2 + 3031^2 .

It is not a de Polignac number, because 16251925 - 2¹ = 16251923 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16251923) 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, 3804 + ... + 6853.

Almost surely, 2^16251925 is an apocalyptic number.

It is an amenable number.

16251925 is a deficient number, since it is larger than the sum of its proper divisors (4232751).

16251925 is a wasteful number, since it uses less digits than its factorization.

16251925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10728 (or 10723 counting only the distinct ones).

The product of its digits is 5400, while the sum is 31.

The square root of 16251925 is about 4031.3676339426. The cubic root of 16251925 is about 253.2998522619.

The spelling of 16251925 in words is "sixteen million, two hundred fifty-one thousand, nine hundred twenty-five".