20625267 has 24 divisors (see below), whose sum is σ = 31543344. Its totient is φ = 11940864.

The previous prime is 20625263. The next prime is 20625271. The reversal of 20625267 is 76252602.

It is an interprime number because it is at equal distance from previous prime (20625263) and next prime (20625271).

It is not a de Polignac number, because 20625267 - 2² = 20625263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20625263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7423 + ... + 9815.

It is an arithmetic number, because the mean of its divisors is an integer number (1314306).

Almost surely, 2^20625267 is an apocalyptic number.

20625267 is a deficient number, since it is larger than the sum of its proper divisors (10918077).

20625267 is a wasteful number, since it uses less digits than its factorization.

20625267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439 (or 2426 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 20625267 is about 4541.5049267836. The cubic root of 20625267 is about 274.2415110051.

Adding to 20625267 its reverse (76252602), we get a palindrome (96877869).

The spelling of 20625267 in words is "twenty million, six hundred twenty-five thousand, two hundred sixty-seven".