51543551153 has 4 divisors (see below), whose sum is σ = 51544609008. Its totient is φ = 51542493300.

The previous prime is 51543551141. The next prime is 51543551197. The reversal of 51543551153 is 35115534515.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51543551153 - 2¹² = 51543547057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51543551123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452123 + ... + 554528.

It is an arithmetic number, because the mean of its divisors is an integer number (12886152252).

Almost surely, 2^51543551153 is an apocalyptic number.

It is an amenable number.

51543551153 is a deficient number, since it is larger than the sum of its proper divisors (1057855).

51543551153 is a wasteful number, since it uses less digits than its factorization.

51543551153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057854.

The product of its digits is 112500, while the sum is 38.

The spelling of 51543551153 in words is "fifty-one billion, five hundred forty-three million, five hundred fifty-one thousand, one hundred fifty-three".