20677325 has 12 divisors (see below), whose sum is σ = 26266548. Its totient is φ = 16137600.

The previous prime is 20677313. The next prime is 20677331. The reversal of 20677325 is 52377602.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 56644 + 20620681 = 238^2 + 4541^2 .

It is not a de Polignac number, because 20677325 - 2¹² = 20673229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20677291 and 20677300.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9062 + ... + 11111.

It is an arithmetic number, because the mean of its divisors is an integer number (2188879).

Almost surely, 2^20677325 is an apocalyptic number.

20677325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20677325 is a deficient number, since it is larger than the sum of its proper divisors (5589223).

20677325 is a wasteful number, since it uses less digits than its factorization.

20677325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20224 (or 20219 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 20677325 is about 4547.2326749354. The cubic root of 20677325 is about 274.4720449123.

The spelling of 20677325 in words is "twenty million, six hundred seventy-seven thousand, three hundred twenty-five".