26605481 has 12 divisors (see below), whose sum is σ = 31059072. Its totient is φ = 22790292.

The previous prime is 26605477. The next prime is 26605487. The reversal of 26605481 is 18450662.

It is not a de Polignac number, because 26605481 - 2² = 26605477 is a prime.

It is a super-2 number, since 2×26605481² = 1415703238482722, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (26605487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16016 + ... + 17598.

It is an arithmetic number, because the mean of its divisors is an integer number (2588256).

Almost surely, 2^26605481 is an apocalyptic number.

It is an amenable number.

26605481 is a deficient number, since it is larger than the sum of its proper divisors (4453591).

26605481 is an frugal number, since it uses more digits than its factorization.

26605481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618 (or 1590 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 26605481 is about 5158.0501160807. The cubic root of 26605481 is about 298.5316433397.

The spelling of 26605481 in words is "twenty-six million, six hundred five thousand, four hundred eighty-one".