26407225 has 24 divisors (see below), whose sum is σ = 35530712. Its totient is φ = 19353600.

The previous prime is 26407223. The next prime is 26407231. The reversal of 26407225 is 52270462.

It can be written as a sum of positive squares in 12 ways, for example, as 23348224 + 3059001 = 4832^2 + 1749^2 .

It is not a de Polignac number, because 26407225 - 2¹ = 26407223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26407193 and 26407202.

It is not an unprimeable number, because it can be changed into a prime (26407223) 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 in 23 ways as a sum of consecutive naturals, for example, 62515 + ... + 62935.

Almost surely, 2^26407225 is an apocalyptic number.

26407225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26407225 is a deficient number, since it is larger than the sum of its proper divisors (9123487).

26407225 is a wasteful number, since it uses less digits than its factorization.

26407225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637 (or 632 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 26407225 is about 5138.7960652277. The cubic root of 26407225 is about 297.7882712953.

Adding to 26407225 its reverse (52270462), we get a palindrome (78677687).

The spelling of 26407225 in words is "twenty-six million, four hundred seven thousand, two hundred twenty-five".