20125532477313 has 24 divisors (see below), whose sum is σ = 29106902733480. Its totient is φ = 13400089643520.

The previous prime is 20125532477233. The next prime is 20125532477321. The reversal of 20125532477313 is 31377423552102.

20125532477313 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 5 + 5 + 324 + 7 + 7 + 313 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 148816178289 + 19976716299024 = 385767^2 + 4469532^2 .

It is not a de Polignac number, because 20125532477313 - 2¹⁸ = 20125532215169 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20125532457313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 225090745 + ... + 225180137.

It is an arithmetic number, because the mean of its divisors is an integer number (1212787613895).

Almost surely, 2^{20125532477313} is an apocalyptic number.

It is an amenable number.

20125532477313 is a deficient number, since it is larger than the sum of its proper divisors (8981370256167).

20125532477313 is a wasteful number, since it uses less digits than its factorization.

20125532477313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120689 (or 120686 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 45.

The spelling of 20125532477313 in words is "twenty trillion, one hundred twenty-five billion, five hundred thirty-two million, four hundred seventy-seven thousand, three hundred thirteen".