16236025 has 12 divisors (see below), whose sum is σ = 21681772. Its totient is φ = 11989440.

The previous prime is 16236023. The next prime is 16236029. The reversal of 16236025 is 52063261.

It can be written as a sum of positive squares in 6 ways, for example, as 3254416 + 12981609 = 1804^2 + 3603^2 .

It is not a de Polignac number, because 16236025 - 2¹ = 16236023 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16236023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24654 + ... + 25303.

Almost surely, 2^16236025 is an apocalyptic number.

It is an amenable number.

16236025 is a deficient number, since it is larger than the sum of its proper divisors (5445747).

16236025 is a wasteful number, since it uses less digits than its factorization.

16236025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49980 (or 49975 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 16236025 is about 4029.3951158952. The cubic root of 16236025 is about 253.2172203730.

Adding to 16236025 its reverse (52063261), we get a palindrome (68299286).

The spelling of 16236025 in words is "sixteen million, two hundred thirty-six thousand, twenty-five".