13531551212055 has 16 divisors (see below), whose sum is σ = 21655392564960. Its totient is φ = 7215190437888.

The previous prime is 13531551211961. The next prime is 13531551212057. The reversal of 13531551212055 is 55021215513531.

13531551212055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13531551212055 - 2¹² = 13531551207959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531551212057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102236362 + ... + 102368631.

It is an arithmetic number, because the mean of its divisors is an integer number (1353462035310).

Almost surely, 2^{13531551212055} is an apocalyptic number.

13531551212055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13531551212055 is a deficient number, since it is larger than the sum of its proper divisors (8123841352905).

13531551212055 is a wasteful number, since it uses less digits than its factorization.

13531551212055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204609410.

The product of its (nonzero) digits is 112500, while the sum is 39.

Adding to 13531551212055 its reverse (55021215513531), we get a palindrome (68552766725586).

The spelling of 13531551212055 in words is "thirteen trillion, five hundred thirty-one billion, five hundred fifty-one million, two hundred twelve thousand, fifty-five".