16452025 has 12 divisors (see below), whose sum is σ = 20463100. Its totient is φ = 13121280.

The previous prime is 16451993. The next prime is 16452031. The reversal of 16452025 is 52025461.

It can be written as a sum of positive squares in 6 ways, for example, as 2732409 + 13719616 = 1653^2 + 3704^2 .

It is not a de Polignac number, because 16452025 - 2⁵ = 16451993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9421 + ... + 11029.

Almost surely, 2^16452025 is an apocalyptic number.

It is an amenable number.

16452025 is a deficient number, since it is larger than the sum of its proper divisors (4011075).

16452025 is a wasteful number, since it uses less digits than its factorization.

16452025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028 (or 2023 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 16452025 is about 4056.1095892493. The cubic root of 16452025 is about 254.3351899781.

Adding to 16452025 its reverse (52025461), we get a palindrome (68477486).

The spelling of 16452025 in words is "sixteen million, four hundred fifty-two thousand, twenty-five".