16525425 has 24 divisors (see below), whose sum is σ = 31226176. Its totient is φ = 7554240.

The previous prime is 16525409. The next prime is 16525433. The reversal of 16525425 is 52452561.

16525425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16525425 - 2⁴ = 16525409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16525392 and 16525401.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15214 + ... + 16263.

Almost surely, 2^16525425 is an apocalyptic number.

16525425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16525425 is a deficient number, since it is larger than the sum of its proper divisors (14700751).

16525425 is a wasteful number, since it uses less digits than its factorization.

16525425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31497 (or 31492 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 16525425 is about 4065.1475987964. The cubic root of 16525425 is about 254.7128640352.

Adding to 16525425 its reverse (52452561), we get a palindrome (68977986).

The spelling of 16525425 in words is "sixteen million, five hundred twenty-five thousand, four hundred twenty-five".