16253325 has 72 divisors (see below), whose sum is σ = 32984000. Its totient is φ = 7840800.

The previous prime is 16253291. The next prime is 16253327. The reversal of 16253325 is 52335261.

16253325 is a `hidden beast` number, since 1 + 625 + 3 + 32 + 5 = 666.

It is not a de Polignac number, because 16253325 - 2⁷ = 16253197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16253327) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 81576 + ... + 81774.

Almost surely, 2^16253325 is an apocalyptic number.

16253325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16253325 is an abundant number, since it is smaller than the sum of its proper divisors (16730675).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16253325 is a wasteful number, since it uses less digits than its factorization.

16253325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 218 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 16253325 is about 4031.5412685473. The cubic root of 16253325 is about 253.3071254436.

Adding to 16253325 its reverse (52335261), we get a palindrome (68588586).

It can be divided in two parts, 1625 and 3325, that added together give a triangular number (4950 = T₉₉).

The spelling of 16253325 in words is "sixteen million, two hundred fifty-three thousand, three hundred twenty-five".