51543541005 has 16 divisors (see below), whose sum is σ = 89966908224. Its totient is φ = 24990807680.

The previous prime is 51543540991. The next prime is 51543541037. The reversal of 51543541005 is 50014534515.

It is not a de Polignac number, because 51543541005 - 2⁸ = 51543540749 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156192384 + ... + 156192713.

It is an arithmetic number, because the mean of its divisors is an integer number (5622931764).

Almost surely, 2^51543541005 is an apocalyptic number.

51543541005 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51543541005 is a deficient number, since it is larger than the sum of its proper divisors (38423367219).

51543541005 is a wasteful number, since it uses less digits than its factorization.

51543541005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312385116.

The product of its (nonzero) digits is 30000, while the sum is 33.

The spelling of 51543541005 in words is "fifty-one billion, five hundred forty-three million, five hundred forty-one thousand, five".