11551543451253 has 16 divisors (see below), whose sum is σ = 18429812914240. Its totient is φ = 7108642123632.

The previous prime is 11551543451251. The next prime is 11551543451291. The reversal of 11551543451253 is 35215434515511.

11551543451253 is a `hidden beast` number, since 1 + 1 + 5 + 5 + 1 + 54 + 34 + 512 + 53 = 666.

11551543451253 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 11551543451253 - 2¹ = 11551543451251 is a prime.

It is a super-2 number, since 2×11551543451253² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11551543451199 and 11551543451208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11551543451251) 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, 16455189751 + ... + 16455190452.

It is an arithmetic number, because the mean of its divisors is an integer number (1151863307140).

Almost surely, 2^{11551543451253} is an apocalyptic number.

11551543451253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11551543451253 is a deficient number, since it is larger than the sum of its proper divisors (6878269462987).

11551543451253 is a wasteful number, since it uses less digits than its factorization.

11551543451253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32910380225 (or 32910380219 counting only the distinct ones).

The product of its digits is 900000, while the sum is 45.

Adding to 11551543451253 its reverse (35215434515511), we get a palindrome (46766977966764).

The spelling of 11551543451253 in words is "eleven trillion, five hundred fifty-one billion, five hundred forty-three million, four hundred fifty-one thousand, two hundred fifty-three".