51113544453 has 20 divisors (see below), whose sum is σ = 76363642080. Its totient is φ = 34071750792.

The previous prime is 51113544451. The next prime is 51113544457. The reversal of 51113544453 is 35444531115.

51113544453 is a `hidden beast` number, since 51 + 1 + 13 + 544 + 4 + 53 = 666.

It is not a de Polignac number, because 51113544453 - 2¹ = 51113544451 is a prime.

It is a super-2 number, since 2×51113544453² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51113544451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 779038 + ... + 842096.

It is an arithmetic number, because the mean of its divisors is an integer number (3818182104).

Almost surely, 2^51113544453 is an apocalyptic number.

It is an amenable number.

51113544453 is a deficient number, since it is larger than the sum of its proper divisors (25250097627).

51113544453 is a wasteful number, since it uses less digits than its factorization.

51113544453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73078 (or 73069 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The spelling of 51113544453 in words is "fifty-one billion, one hundred thirteen million, five hundred forty-four thousand, four hundred fifty-three".