20441525 has 12 divisors (see below), whose sum is σ = 27297732. Its totient is φ = 15095040.

The previous prime is 20441471. The next prime is 20441563. The reversal of 20441525 is 52514402.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1274641 + 19166884 = 1129^2 + 4378^2 .

It is not a de Polignac number, because 20441525 - 2⁶ = 20441461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20441525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31124 + ... + 31773.

It is an arithmetic number, because the mean of its divisors is an integer number (2274811).

Almost surely, 2^20441525 is an apocalyptic number.

20441525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20441525 is a deficient number, since it is larger than the sum of its proper divisors (6856207).

20441525 is a wasteful number, since it uses less digits than its factorization.

20441525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62920 (or 62915 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 20441525 is about 4521.2304741077. The cubic root of 20441525 is about 273.4247124904.

Adding to 20441525 its reverse (52514402), we get a palindrome (72955927).

The spelling of 20441525 in words is "twenty million, four hundred forty-one thousand, five hundred twenty-five".