20203013025 has 180 divisors, whose sum is σ = 41910434748. Its totient is φ = 9244834560.

The previous prime is 20203013021. The next prime is 20203013029. The reversal of 20203013025 is 52031030202.

It is an interprime number because it is at equal distance from previous prime (20203013021) and next prime (20203013029).

It can be written as a sum of positive squares in 6 ways, for example, as 986399649 + 19216613376 = 31407^2 + 138624^2 .

It is not a de Polignac number, because 20203013025 - 2² = 20203013021 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20203012989 and 20203013007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203013021) by changing a digit.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 381188899 + ... + 381188951.

Almost surely, 2^20203013025 is an apocalyptic number.

20203013025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20203013025 is an abundant number, since it is smaller than the sum of its proper divisors (21707421723).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20203013025 is an equidigital number, since it uses as much as digits as its factorization.

20203013025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

Adding to 20203013025 its reverse (52031030202), we get a palindrome (72234043227).

The spelling of 20203013025 in words is "twenty billion, two hundred three million, thirteen thousand, twenty-five".