26556061 has 4 divisors (see below), whose sum is σ = 30349792. Its totient is φ = 22762332.

The previous prime is 26556043. The next prime is 26556097. The reversal of 26556061 is 16065562.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16065562 = 2 ⋅8032781.

It is a cyclic number.

It is not a de Polignac number, because 26556061 - 2⁵ = 26556029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26556001) 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, 1896855 + ... + 1896868.

It is an arithmetic number, because the mean of its divisors is an integer number (7587448).

Almost surely, 2^26556061 is an apocalyptic number.

It is an amenable number.

26556061 is a deficient number, since it is larger than the sum of its proper divisors (3793731).

26556061 is an equidigital number, since it uses as much as digits as its factorization.

26556061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3793730.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 26556061 is about 5153.2573194049. The cubic root of 26556061 is about 298.3466867369.

The spelling of 26556061 in words is "twenty-six million, five hundred fifty-six thousand, sixty-one".