20672325 has 36 divisors (see below), whose sum is σ = 37527360. Its totient is φ = 10876320.

The previous prime is 20672321. The next prime is 20672371. The reversal of 20672325 is 52327602.

It is not a de Polignac number, because 20672325 - 2² = 20672321 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20672321) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17194 + ... + 18356.

Almost surely, 2^20672325 is an apocalyptic number.

20672325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20672325 is a deficient number, since it is larger than the sum of its proper divisors (16855035).

20672325 is a wasteful number, since it uses less digits than its factorization.

20672325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258 (or 1250 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 20672325 is about 4546.6828567649. The cubic root of 20672325 is about 274.4499196962.

Adding to 20672325 its reverse (52327602), we get a palindrome (72999927).

The spelling of 20672325 in words is "twenty million, six hundred seventy-two thousand, three hundred twenty-five".