20020525 has 24 divisors (see below), whose sum is σ = 28551744. Its totient is φ = 13641600.

The previous prime is 20020501. The next prime is 20020531. The reversal of 20020525 is 52502002.

It is not a de Polignac number, because 20020525 - 2¹¹ = 20018477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20020499 and 20020508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40530 + ... + 41020.

It is an arithmetic number, because the mean of its divisors is an integer number (1189656).

Almost surely, 2^20020525 is an apocalyptic number.

20020525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20020525 is a deficient number, since it is larger than the sum of its proper divisors (8531219).

20020525 is a wasteful number, since it uses less digits than its factorization.

20020525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 20020525 is about 4474.4301313128. The cubic root of 20020525 is about 271.5345856158.

Adding to 20020525 its reverse (52502002), we get a palindrome (72522527).

The spelling of 20020525 in words is "twenty million, twenty thousand, five hundred twenty-five".