20502125 has 16 divisors (see below), whose sum is σ = 29243136. Its totient is φ = 14058000.

The previous prime is 20502113. The next prime is 20502133. The reversal of 20502125 is 52120502.

It is not a de Polignac number, because 20502125 - 2⁴ = 20502109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10841 + ... + 12590.

It is an arithmetic number, because the mean of its divisors is an integer number (1827696).

Almost surely, 2^20502125 is an apocalyptic number.

20502125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20502125 is a deficient number, since it is larger than the sum of its proper divisors (8741011).

20502125 is an equidigital number, since it uses as much as digits as its factorization.

20502125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23453 (or 23443 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 20502125 is about 4527.9272299806. The cubic root of 20502125 is about 273.6946400151.

Adding to 20502125 its reverse (52120502), we get a palindrome (72622627).

The spelling of 20502125 in words is "twenty million, five hundred two thousand, one hundred twenty-five".