13032555535861 has 4 divisors (see below), whose sum is σ = 13032571488300. Its totient is φ = 13032539583424.

The previous prime is 13032555535847. The next prime is 13032555535919. The reversal of 13032555535861 is 16853555523031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4409118044100 + 8623437491761 = 2099790^2 + 2936569^2 .

It is a cyclic number.

It is not a de Polignac number, because 13032555535861 - 2¹³ = 13032555527669 is a prime.

It is a super-2 number, since 2×13032555535861² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13032555535799 and 13032555535808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13032555535361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6680626 + ... + 8408083.

It is an arithmetic number, because the mean of its divisors is an integer number (3258142872075).

Almost surely, 2^{13032555535861} is an apocalyptic number.

It is an amenable number.

13032555535861 is a deficient number, since it is larger than the sum of its proper divisors (15952439).

13032555535861 is an equidigital number, since it uses as much as digits as its factorization.

13032555535861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15952438.

The product of its (nonzero) digits is 8100000, while the sum is 52.

The spelling of 13032555535861 in words is "thirteen trillion, thirty-two billion, five hundred fifty-five million, five hundred thirty-five thousand, eight hundred sixty-one".