51540273255 has 16 divisors (see below), whose sum is σ = 82806619104. Its totient is φ = 27374085120.

The previous prime is 51540273241. The next prime is 51540273299. The reversal of 51540273255 is 55237204515.

It is not a de Polignac number, because 51540273255 - 2¹² = 51540269159 is a prime.

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, 7125054 + ... + 7132283.

It is an arithmetic number, because the mean of its divisors is an integer number (5175413694).

Almost surely, 2^51540273255 is an apocalyptic number.

51540273255 is a deficient number, since it is larger than the sum of its proper divisors (31266345849).

51540273255 is a wasteful number, since it uses less digits than its factorization.

51540273255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14257586.

The product of its (nonzero) digits is 210000, while the sum is 39.

The spelling of 51540273255 in words is "fifty-one billion, five hundred forty million, two hundred seventy-three thousand, two hundred fifty-five".