25530275 has 12 divisors (see below), whose sum is σ = 31974144. Its totient is φ = 20220000.

The previous prime is 25530257. The next prime is 25530287. The reversal of 25530275 is 57203552.

It is not a de Polignac number, because 25530275 - 2¹⁶ = 25464739 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2531 + ... + 7580.

It is an arithmetic number, because the mean of its divisors is an integer number (2664512).

Almost surely, 2^25530275 is an apocalyptic number.

25530275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25530275 is a deficient number, since it is larger than the sum of its proper divisors (6443869).

25530275 is a wasteful number, since it uses less digits than its factorization.

25530275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10222 (or 10217 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 25530275 is about 5052.7492516451. The cubic root of 25530275 is about 294.4547046251.

The spelling of 25530275 in words is "twenty-five million, five hundred thirty thousand, two hundred seventy-five".