20795525 has 6 divisors (see below), whose sum is σ = 25786482. Its totient is φ = 16636400.

The previous prime is 20795521. The next prime is 20795543. The reversal of 20795525 is 52559702.

It can be written as a sum of positive squares in 3 ways, for example, as 6180196 + 14615329 = 2486^2 + 3823^2 .

It is not a de Polignac number, because 20795525 - 2² = 20795521 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 (20795521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 415886 + ... + 415935.

It is an arithmetic number, because the mean of its divisors is an integer number (4297747).

Almost surely, 2^20795525 is an apocalyptic number.

20795525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20795525 is a deficient number, since it is larger than the sum of its proper divisors (4990957).

20795525 is an equidigital number, since it uses as much as digits as its factorization.

20795525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831831 (or 831826 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 20795525 is about 4560.2110696765. The cubic root of 20795525 is about 274.9940494580.

The spelling of 20795525 in words is "twenty million, seven hundred ninety-five thousand, five hundred twenty-five".