26451374525 has 6 divisors (see below), whose sum is σ = 32799704442. Its totient is φ = 21161099600.

The previous prime is 26451374513. The next prime is 26451374561. The reversal of 26451374525 is 52547315462.

It can be written as a sum of positive squares in 3 ways, for example, as 4510062649 + 21941311876 = 67157^2 + 148126^2 .

It is not a de Polignac number, because 26451374525 - 2²⁴ = 26434597309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 529027466 + ... + 529027515.

It is an arithmetic number, because the mean of its divisors is an integer number (5466617407).

Almost surely, 2^26451374525 is an apocalyptic number.

26451374525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26451374525 is a deficient number, since it is larger than the sum of its proper divisors (6348329917).

26451374525 is a wasteful number, since it uses less digits than its factorization.

26451374525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058054991 (or 1058054986 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 44.

Adding to 26451374525 its reverse (52547315462), we get a palindrome (78998689987).

The spelling of 26451374525 in words is "twenty-six billion, four hundred fifty-one million, three hundred seventy-four thousand, five hundred twenty-five".