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25252267 = 31181197
BaseRepresentation
bin110000001010…
…1000110101011
31202111221121011
41200111012223
522431033032
62301124351
7424432525
oct140250653
952457534
1025252267
1113288447
1285596b7
135301c91
1434d4a15
15233c247
hex18151ab

25252267 has 4 divisors (see below), whose sum is σ = 25333776. Its totient is φ = 25170760.

The previous prime is 25252247. The next prime is 25252277. The reversal of 25252267 is 76225252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25252267 - 215 = 25219499 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25252247) 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 3 ways as a sum of consecutive naturals, for example, 40288 + ... + 40909.

It is an arithmetic number, because the mean of its divisors is an integer number (6333444).

Almost surely, 225252267 is an apocalyptic number.

25252267 is a deficient number, since it is larger than the sum of its proper divisors (81509).

25252267 is an equidigital number, since it uses as much as digits as its factorization.

25252267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81508.

The product of its digits is 16800, while the sum is 31.

The square root of 25252267 is about 5025.1633804285. The cubic root of 25252267 is about 293.3819950548.

The spelling of 25252267 in words is "twenty-five million, two hundred fifty-two thousand, two hundred sixty-seven".

Divisors: 1 311 81197 25252267