26447020525 has 24 divisors (see below), whose sum is σ = 33936756480. Its totient is φ = 20421051840.

The previous prime is 26447020519. The next prime is 26447020529. The reversal of 26447020525 is 52502074462.

It is not a de Polignac number, because 26447020525 - 2³ = 26447020517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26447020529) 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 23 ways as a sum of consecutive naturals, for example, 3376764 + ... + 3384586.

It is an arithmetic number, because the mean of its divisors is an integer number (1414031520).

Almost surely, 2^26447020525 is an apocalyptic number.

26447020525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26447020525 is a deficient number, since it is larger than the sum of its proper divisors (7489735955).

26447020525 is a wasteful number, since it uses less digits than its factorization.

26447020525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12525 (or 12520 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 37.

Adding to 26447020525 its reverse (52502074462), we get a palindrome (78949094987).

The spelling of 26447020525 in words is "twenty-six billion, four hundred forty-seven million, twenty thousand, five hundred twenty-five".