26725249 has 2 divisors, whose sum is σ = 26725250. Its totient is φ = 26725248.

The previous prime is 26725243. The next prime is 26725261. The reversal of 26725249 is 94252762.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25321024 + 1404225 = 5032^2 + 1185^2 .

It is a cyclic number.

It is not a de Polignac number, because 26725249 - 2¹⁵ = 26692481 is a prime.

It is a super-2 number, since 2×26725249² = 1428477868224002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26725243) by changing a digit.

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 as a sum of consecutive naturals, namely, 13362624 + 13362625.

It is an arithmetic number, because the mean of its divisors is an integer number (13362625).

Almost surely, 2^26725249 is an apocalyptic number.

It is an amenable number.

26725249 is a deficient number, since it is larger than the sum of its proper divisors (1).

26725249 is an equidigital number, since it uses as much as digits as its factorization.

26725249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 37.

The square root of 26725249 is about 5169.6468931640. The cubic root of 26725249 is about 298.9789323829.

It can be divided in two parts, 2672 and 5249, that added together give a square (7921 = 89²).

The spelling of 26725249 in words is "twenty-six million, seven hundred twenty-five thousand, two hundred forty-nine".