51342004555 has 16 divisors (see below), whose sum is σ = 65460303360. Its totient is φ = 38657490816.

The previous prime is 51342004543. The next prime is 51342004621. The reversal of 51342004555 is 55540024315.

It is not a de Polignac number, because 51342004555 - 2¹⁷ = 51341873483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51342004555.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1020459 + ... + 1069588.

It is an arithmetic number, because the mean of its divisors is an integer number (4091268960).

Almost surely, 2^51342004555 is an apocalyptic number.

51342004555 is a deficient number, since it is larger than the sum of its proper divisors (14118298805).

51342004555 is an equidigital number, since it uses as much as digits as its factorization.

51342004555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090103 (or 2090069 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 34.

The spelling of 51342004555 in words is "fifty-one billion, three hundred forty-two million, four thousand, five hundred fifty-five".