20020233525 has 24 divisors (see below), whose sum is σ = 33283015584. Its totient is φ = 10618459200.

The previous prime is 20020233521. The next prime is 20020233529. The reversal of 20020233525 is 52533202002.

It is an interprime number because it is at equal distance from previous prime (20020233521) and next prime (20020233529).

It is not a de Polignac number, because 20020233525 - 2² = 20020233521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20020233495 and 20020233504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020233521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 723819 + ... + 750968.

It is an arithmetic number, because the mean of its divisors is an integer number (1386792316).

Almost surely, 2^20020233525 is an apocalyptic number.

20020233525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20020233525 is a deficient number, since it is larger than the sum of its proper divisors (13262782059).

20020233525 is a wasteful number, since it uses less digits than its factorization.

20020233525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474981 (or 1474976 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

Adding to 20020233525 its reverse (52533202002), we get a palindrome (72553435527).

The spelling of 20020233525 in words is "twenty billion, twenty million, two hundred thirty-three thousand, five hundred twenty-five".