26125281 has 80 divisors (see below), whose sum is σ = 50193920. Its totient is φ = 13335840.

The previous prime is 26125273. The next prime is 26125289. The reversal of 26125281 is 18252162.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (26125273) and next prime (26125289).

It is not a de Polignac number, because 26125281 - 2³ = 26125273 is a prime.

It is a super-2 number, since 2×26125281² = 1365060614657922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (26125289) 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 79 ways as a sum of consecutive naturals, for example, 842736 + ... + 842766.

It is an arithmetic number, because the mean of its divisors is an integer number (627424).

Almost surely, 2^26125281 is an apocalyptic number.

26125281 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

26125281 is a deficient number, since it is larger than the sum of its proper divisors (24068639).

26125281 is an equidigital number, since it uses as much as digits as its factorization.

26125281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 54 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 26125281 is about 5111.2895633098. The cubic root of 26125281 is about 296.7246708673.

The spelling of 26125281 in words is "twenty-six million, one hundred twenty-five thousand, two hundred eighty-one".