51542531255 has 8 divisors (see below), whose sum is σ = 61969302672. Its totient is φ = 41155181568.

The previous prime is 51542531239. The next prime is 51542531291. The reversal of 51542531255 is 55213524515.

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 51542531255 - 2⁴ = 51542531239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9852554 + ... + 9857783.

It is an arithmetic number, because the mean of its divisors is an integer number (7746162834).

Almost surely, 2^51542531255 is an apocalyptic number.

51542531255 is a deficient number, since it is larger than the sum of its proper divisors (10426771417).

51542531255 is a wasteful number, since it uses less digits than its factorization.

51542531255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19710865.

The product of its digits is 150000, while the sum is 38.

The spelling of 51542531255 in words is "fifty-one billion, five hundred forty-two million, five hundred thirty-one thousand, two hundred fifty-five".