16240025 has 12 divisors (see below), whose sum is σ = 20607312. Its totient is φ = 12689040.

The previous prime is 16240009. The next prime is 16240027. The reversal of 16240025 is 52004261.

It is a happy number.

It is not a de Polignac number, because 16240025 - 2⁴ = 16240009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16239979 and 16240006.

It is not an unprimeable number, because it can be changed into a prime (16240027) 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, 6479 + ... + 8628.

It is an arithmetic number, because the mean of its divisors is an integer number (1717276).

Almost surely, 2^16240025 is an apocalyptic number.

It is an amenable number.

16240025 is a deficient number, since it is larger than the sum of its proper divisors (4367287).

16240025 is a wasteful number, since it uses less digits than its factorization.

16240025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15160 (or 15155 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 16240025 is about 4029.8914377437. The cubic root of 16240025 is about 253.2380133466.

Adding to 16240025 its reverse (52004261), we get a palindrome (68244286).

The spelling of 16240025 in words is "sixteen million, two hundred forty thousand, twenty-five".