20567625 has 32 divisors (see below), whose sum is σ = 36865920. Its totient is φ = 10123200.

The previous prime is 20567621. The next prime is 20567629. The reversal of 20567625 is 52676502.

It is an interprime number because it is at equal distance from previous prime (20567621) and next prime (20567629).

It is not a de Polignac number, because 20567625 - 2² = 20567621 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20567621) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2766 + ... + 6984.

It is an arithmetic number, because the mean of its divisors is an integer number (1152060).

Almost surely, 2^20567625 is an apocalyptic number.

20567625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20567625 is a deficient number, since it is larger than the sum of its proper divisors (16298295).

20567625 is a wasteful number, since it uses less digits than its factorization.

20567625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4250 (or 4240 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 20567625 is about 4535.1543523898. The cubic root of 20567625 is about 273.9857958787.

It can be divided in two parts, 20 and 567625, that added together give a triangular number (567645 = T₁₀₆₅).

The spelling of 20567625 in words is "twenty million, five hundred sixty-seven thousand, six hundred twenty-five".