20125263 has 16 divisors (see below), whose sum is σ = 28588896. Its totient is φ = 12549120.

The previous prime is 20125249. The next prime is 20125267. The reversal of 20125263 is 36252102.

It is not a de Polignac number, because 20125263 - 2¹⁶ = 20059727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20125267) 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 15 ways as a sum of consecutive naturals, for example, 7683 + ... + 9963.

It is an arithmetic number, because the mean of its divisors is an integer number (1786806).

Almost surely, 2^20125263 is an apocalyptic number.

20125263 is a deficient number, since it is larger than the sum of its proper divisors (8463633).

20125263 is a wasteful number, since it uses less digits than its factorization.

20125263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 20125263 is about 4486.1189239698. The cubic root of 20125263 is about 272.0072761534.

Adding to 20125263 its reverse (36252102), we get a palindrome (56377365).

The spelling of 20125263 in words is "twenty million, one hundred twenty-five thousand, two hundred sixty-three".