20766125 has 32 divisors (see below), whose sum is σ = 28035072. Its totient is φ = 15312000.

The previous prime is 20766121. The next prime is 20766127. The reversal of 20766125 is 52166702.

It is not a de Polignac number, because 20766125 - 2² = 20766121 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20766121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89009 + ... + 89241.

It is an arithmetic number, because the mean of its divisors is an integer number (876096).

Almost surely, 2^20766125 is an apocalyptic number.

20766125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20766125 is a deficient number, since it is larger than the sum of its proper divisors (7268947).

20766125 is a wasteful number, since it uses less digits than its factorization.

20766125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 20766125 is about 4556.9863945375. The cubic root of 20766125 is about 274.8643959538.

The spelling of 20766125 in words is "twenty million, seven hundred sixty-six thousand, one hundred twenty-five".