20525152 has 12 divisors (see below), whose sum is σ = 40408956. Its totient is φ = 10262560.

The previous prime is 20525129. The next prime is 20525159. The reversal of 20525152 is 25152502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20525159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320674 + ... + 320737.

It is an arithmetic number, because the mean of its divisors is an integer number (3367413).

Almost surely, 2^20525152 is an apocalyptic number.

It is an amenable number.

20525152 is a deficient number, since it is larger than the sum of its proper divisors (19883804).

20525152 is an equidigital number, since it uses as much as digits as its factorization.

20525152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641421 (or 641413 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 20525152 is about 4530.4692913649. The cubic root of 20525152 is about 273.7970685591.

Adding to 20525152 its reverse (25152502), we get a palindrome (45677654).

The spelling of 20525152 in words is "twenty million, five hundred twenty-five thousand, one hundred fifty-two".