26125491 has 16 divisors (see below), whose sum is σ = 41184000. Its totient is φ = 14413728.

The previous prime is 26125457. The next prime is 26125543. The reversal of 26125491 is 19452162.

It is not a de Polignac number, because 26125491 - 2⁶ = 26125427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26125391) 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 15 ways as a sum of consecutive naturals, for example, 20841 + ... + 22058.

It is an arithmetic number, because the mean of its divisors is an integer number (2574000).

Almost surely, 2^26125491 is an apocalyptic number.

26125491 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

26125491 is a deficient number, since it is larger than the sum of its proper divisors (15058509).

26125491 is a wasteful number, since it uses less digits than its factorization.

26125491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42938.

The product of its digits is 4320, while the sum is 30.

The square root of 26125491 is about 5111.3101060296. The cubic root of 26125491 is about 296.7254659084.

It can be divided in two parts, 261 and 25491, that added together give a palindrome (25752).

The spelling of 26125491 in words is "twenty-six million, one hundred twenty-five thousand, four hundred ninety-one".