20125753 has 4 divisors (see below), whose sum is σ = 20134800. Its totient is φ = 20116708.

The previous prime is 20125751. The next prime is 20125799. The reversal of 20125753 is 35752102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 35752102 = 2 ⋅17876051.

It is a cyclic number.

It is not a de Polignac number, because 20125753 - 2¹ = 20125751 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20125751) 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 3 ways as a sum of consecutive naturals, for example, 1398 + ... + 6496.

It is an arithmetic number, because the mean of its divisors is an integer number (5033700).

Almost surely, 2^20125753 is an apocalyptic number.

It is an amenable number.

20125753 is a deficient number, since it is larger than the sum of its proper divisors (9047).

20125753 is an equidigital number, since it uses as much as digits as its factorization.

20125753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9046.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 20125753 is about 4486.1735365454. The cubic root of 20125753 is about 272.0094837019.

Adding to 20125753 its reverse (35752102), we get a palindrome (55877855).

The spelling of 20125753 in words is "twenty million, one hundred twenty-five thousand, seven hundred fifty-three".