20860526349725 has 6 divisors (see below), whose sum is σ = 25867052673690. Its totient is φ = 16688421079760.

The previous prime is 20860526349701. The next prime is 20860526349727. The reversal of 20860526349725 is 52794362506802.

It can be written as a sum of positive squares in 3 ways, for example, as 4161689760484 + 16698836589241 = 2040022^2 + 4086421^2 .

It is not a de Polignac number, because 20860526349725 - 2¹⁴ = 20860526333341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20860526349727) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 417210526970 + ... + 417210527019.

It is an arithmetic number, because the mean of its divisors is an integer number (4311175445615).

Almost surely, 2^{20860526349725} is an apocalyptic number.

20860526349725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20860526349725 is a deficient number, since it is larger than the sum of its proper divisors (5006526323965).

20860526349725 is an equidigital number, since it uses as much as digits as its factorization.

20860526349725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834421053999 (or 834421053994 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 59.

The spelling of 20860526349725 in words is "twenty trillion, eight hundred sixty billion, five hundred twenty-six million, three hundred forty-nine thousand, seven hundred twenty-five".