26052442021 has 4 divisors (see below), whose sum is σ = 27423623200. Its totient is φ = 24681260844.

The previous prime is 26052441973. The next prime is 26052442027. The reversal of 26052442021 is 12024425062.

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 26052442021 - 2⁷ = 26052441893 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 (26052442027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 685590561 + ... + 685590598.

It is an arithmetic number, because the mean of its divisors is an integer number (6855905800).

Almost surely, 2^26052442021 is an apocalyptic number.

It is an amenable number.

26052442021 is a deficient number, since it is larger than the sum of its proper divisors (1371181179).

26052442021 is a wasteful number, since it uses less digits than its factorization.

26052442021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371181178.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 26052442021 its reverse (12024425062), we get a palindrome (38076867083).

The spelling of 26052442021 in words is "twenty-six billion, fifty-two million, four hundred forty-two thousand, twenty-one".