20243025 has 36 divisors (see below), whose sum is σ = 39558480. Its totient is φ = 9813600.

The previous prime is 20243021. The next prime is 20243029. The reversal of 20243025 is 52034202.

It is an interprime number because it is at equal distance from previous prime (20243021) and next prime (20243029).

It is not a de Polignac number, because 20243025 - 2² = 20243021 is a prime.

It is a super-2 number, since 2×20243025² = 819560122301250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20242989 and 20243007.

It is not an unprimeable number, because it can be changed into a prime (20243021) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 1615 + ... + 6564.

Almost surely, 2^20243025 is an apocalyptic number.

20243025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20243025 is a deficient number, since it is larger than the sum of its proper divisors (19315455).

20243025 is a wasteful number, since it uses less digits than its factorization.

20243025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8206 (or 8198 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 20243025 is about 4499.2249332524. The cubic root of 20243025 is about 272.5367904764.

Adding to 20243025 its reverse (52034202), we get a palindrome (72277227).

The spelling of 20243025 in words is "twenty million, two hundred forty-three thousand, twenty-five".