26520641 has 4 divisors (see below), whose sum is σ = 30309312. Its totient is φ = 22731972.

The previous prime is 26520631. The next prime is 26520647. The reversal of 26520641 is 14602562.

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 26520641 - 2⁶ = 26520577 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26520641.

It is not an unprimeable number, because it can be changed into a prime (26520647) 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, 1894325 + ... + 1894338.

It is an arithmetic number, because the mean of its divisors is an integer number (7577328).

Almost surely, 2^26520641 is an apocalyptic number.

It is an amenable number.

26520641 is a deficient number, since it is larger than the sum of its proper divisors (3788671).

26520641 is an equidigital number, since it uses as much as digits as its factorization.

26520641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3788670.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 26520641 is about 5149.8195114004. The cubic root of 26520641 is about 298.2139845596.

The spelling of 26520641 in words is "twenty-six million, five hundred twenty thousand, six hundred forty-one".