20023525 has 12 divisors (see below), whose sum is σ = 24935904. Its totient is φ = 15950000.

The previous prime is 20023519. The next prime is 20023537. The reversal of 20023525 is 52532002.

It is not a de Polignac number, because 20023525 - 2¹⁵ = 19990757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 4680 + ... + 7870.

It is an arithmetic number, because the mean of its divisors is an integer number (2077992).

Almost surely, 2^20023525 is an apocalyptic number.

20023525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20023525 is a deficient number, since it is larger than the sum of its proper divisors (4912379).

20023525 is a wasteful number, since it uses less digits than its factorization.

20023525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3452 (or 3447 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 20023525 is about 4474.7653569768. The cubic root of 20023525 is about 271.5481477489.

Adding to 20023525 its reverse (52532002), we get a palindrome (72555527).

The spelling of 20023525 in words is "twenty million, twenty-three thousand, five hundred twenty-five".