26105057 has 4 divisors (see below), whose sum is σ = 28478256. Its totient is φ = 23731860.

The previous prime is 26105039. The next prime is 26105059. The reversal of 26105057 is 75050162.

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 26105057 - 2⁸ = 26104801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26105059) 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, 1186583 + ... + 1186604.

It is an arithmetic number, because the mean of its divisors is an integer number (7119564).

Almost surely, 2^26105057 is an apocalyptic number.

It is an amenable number.

26105057 is a deficient number, since it is larger than the sum of its proper divisors (2373199).

26105057 is a wasteful number, since it uses less digits than its factorization.

26105057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373198.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 26105057 is about 5109.3108145816. The cubic root of 26105057 is about 296.6480846558.

It can be divided in two parts, 2610 and 5057, that added together give a palindrome (7667).

The spelling of 26105057 in words is "twenty-six million, one hundred five thousand, fifty-seven".