26831425 has 12 divisors (see below), whose sum is σ = 34083756. Its totient is φ = 20940800.

The previous prime is 26831419. The next prime is 26831429. The reversal of 26831425 is 52413862.

It can be written as a sum of positive squares in 6 ways, for example, as 452929 + 26378496 = 673^2 + 5136^2 .

It is not a de Polignac number, because 26831425 - 2⁷ = 26831297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26831429) 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 11 ways as a sum of consecutive naturals, for example, 12064 + ... + 14113.

It is an arithmetic number, because the mean of its divisors is an integer number (2840313).

Almost surely, 2^26831425 is an apocalyptic number.

26831425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26831425 is a deficient number, since it is larger than the sum of its proper divisors (7252331).

26831425 is a wasteful number, since it uses less digits than its factorization.

26831425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26228 (or 26223 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 26831425 is about 5179.9058871759. The cubic root of 26831425 is about 299.3743442381.

The spelling of 26831425 in words is "twenty-six million, eight hundred thirty-one thousand, four hundred twenty-five".