51153543505 has 8 divisors (see below), whose sum is σ = 61385470272. Its totient is φ = 40922022768.

The previous prime is 51153543503. The next prime is 51153543509. The reversal of 51153543505 is 50534535115.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51153543505 - 2¹ = 51153543503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51153543503) 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 7 ways as a sum of consecutive naturals, for example, 409924 + ... + 519946.

It is an arithmetic number, because the mean of its divisors is an integer number (7673183784).

Almost surely, 2^51153543505 is an apocalyptic number.

It is an amenable number.

51153543505 is a deficient number, since it is larger than the sum of its proper divisors (10231926767).

51153543505 is a wasteful number, since it uses less digits than its factorization.

51153543505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203015.

The product of its (nonzero) digits is 112500, while the sum is 37.

The spelling of 51153543505 in words is "fifty-one billion, one hundred fifty-three million, five hundred forty-three thousand, five hundred five".