26426561 has 8 divisors (see below), whose sum is σ = 30234240. Its totient is φ = 22627008.

The previous prime is 26426501. The next prime is 26426567. The reversal of 26426561 is 16562462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26426561 - 2¹⁴ = 26410177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26426567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8825 + ... + 11433.

It is an arithmetic number, because the mean of its divisors is an integer number (3779280).

Almost surely, 2^26426561 is an apocalyptic number.

It is an amenable number.

26426561 is a deficient number, since it is larger than the sum of its proper divisors (3807679).

26426561 is a wasteful number, since it uses less digits than its factorization.

26426561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4063.

The product of its digits is 17280, while the sum is 32.

The square root of 26426561 is about 5140.6770954807. The cubic root of 26426561 is about 297.8609361209.

The spelling of 26426561 in words is "twenty-six million, four hundred twenty-six thousand, five hundred sixty-one".