26047481 has 4 divisors (see below), whose sum is σ = 26945700. Its totient is φ = 25149264.

The previous prime is 26047459. The next prime is 26047487. The reversal of 26047481 is 18474062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18474062 = 2 ⋅9237031.

It can be written as a sum of positive squares in 2 ways, for example, as 11155600 + 14891881 = 3340^2 + 3859^2 .

It is a de Polignac number, because none of the positive numbers 2^k-26047481 is a prime.

It is a super-2 number, since 2×26047481² = 1356942532890722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26047487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449066 + ... + 449123.

It is an arithmetic number, because the mean of its divisors is an integer number (6736425).

Almost surely, 2^26047481 is an apocalyptic number.

It is an amenable number.

26047481 is a deficient number, since it is larger than the sum of its proper divisors (898219).

26047481 is an equidigital number, since it uses as much as digits as its factorization.

26047481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898218.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 26047481 is about 5103.6732849978. The cubic root of 26047481 is about 296.4298334268.

The spelling of 26047481 in words is "twenty-six million, forty-seven thousand, four hundred eighty-one".