25550267 has 2 divisors, whose sum is σ = 25550268. Its totient is φ = 25550266.

The previous prime is 25550243. The next prime is 25550279. The reversal of 25550267 is 76205552.

25550267 is nontrivially palindromic in base 5.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25550267 - 2¹⁶ = 25484731 is a prime.

It is a super-2 number, since 2×25550267² = 1305632287542578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25550237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12775133 + 12775134.

It is an arithmetic number, because the mean of its divisors is an integer number (12775134).

Almost surely, 2^25550267 is an apocalyptic number.

25550267 is a deficient number, since it is larger than the sum of its proper divisors (1).

25550267 is an equidigital number, since it uses as much as digits as its factorization.

25550267 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 25550267 is about 5054.7271934299. The cubic root of 25550267 is about 294.5315441493.

The spelling of 25550267 in words is "twenty-five million, five hundred fifty thousand, two hundred sixty-seven".