4280025 has 24 divisors (see below), whose sum is σ = 7142400. Its totient is φ = 2261440.

The previous prime is 4280021. The next prime is 4280033. The reversal of 4280025 is 5200824.

It is not a de Polignac number, because 4280025 - 2² = 4280021 is a prime.

It is a super-2 number, since 2×4280025² = 36637228001250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4279983 and 4280010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4280021) 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 23 ways as a sum of consecutive naturals, for example, 10984 + ... + 11366.

It is an arithmetic number, because the mean of its divisors is an integer number (297600).

Almost surely, 2^4280025 is an apocalyptic number.

It is an amenable number.

4280025 is a deficient number, since it is larger than the sum of its proper divisors (2862375).

4280025 is a wasteful number, since it uses less digits than its factorization.

4280025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 4280025 is about 2068.8221286520. The cubic root of 4280025 is about 162.3611437085.

Adding to 4280025 its reverse (5200824), we get a palindrome (9480849).

The spelling of 4280025 in words is "four million, two hundred eighty thousand, twenty-five".