26616481 has 4 divisors (see below), whose sum is σ = 26674432. Its totient is φ = 26558532.

The previous prime is 26616479. The next prime is 26616521. The reversal of 26616481 is 18461662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26616481 - 2¹ = 26616479 is a prime.

It is a super-2 number, since 2×26616481² = 1416874121646722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26616181) 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, 28281 + ... + 29206.

It is an arithmetic number, because the mean of its divisors is an integer number (6668608).

Almost surely, 2^26616481 is an apocalyptic number.

It is an amenable number.

26616481 is a deficient number, since it is larger than the sum of its proper divisors (57951).

26616481 is an equidigital number, since it uses as much as digits as its factorization.

26616481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57950.

The product of its digits is 13824, while the sum is 34.

The square root of 26616481 is about 5159.1163002979. The cubic root of 26616481 is about 298.5727801718.

The spelling of 26616481 in words is "twenty-six million, six hundred sixteen thousand, four hundred eighty-one".