20127525 has 48 divisors (see below), whose sum is σ = 37521408. Its totient is φ = 9432000.

The previous prime is 20127521. The next prime is 20127533. The reversal of 20127525 is 52572102.

It is not a de Polignac number, because 20127525 - 2² = 20127521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20127495 and 20127504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20127521) 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 47 ways as a sum of consecutive naturals, for example, 25182 + ... + 25968.

It is an arithmetic number, because the mean of its divisors is an integer number (781696).

Almost surely, 2^20127525 is an apocalyptic number.

20127525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20127525 is a deficient number, since it is larger than the sum of its proper divisors (17393883).

20127525 is a wasteful number, since it uses less digits than its factorization.

20127525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842 (or 837 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 20127525 is about 4486.3710279022. The cubic root of 20127525 is about 272.0174666191.

Adding to 20127525 its reverse (52572102), we get a palindrome (72699627).

The spelling of 20127525 in words is "twenty million, one hundred twenty-seven thousand, five hundred twenty-five".