51053131505 has 16 divisors (see below), whose sum is σ = 63014874384. Its totient is φ = 39678439680.

The previous prime is 51053131483. The next prime is 51053131523. The reversal of 51053131505 is 50513135015.

It can be written as a sum of positive squares in 8 ways, for example, as 15955731856 + 35097399649 = 126316^2 + 187343^2 .

It is not a de Polignac number, because 51053131505 - 2⁸ = 51053131249 is a prime.

It is a Duffinian number.

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, 86462 + ... + 331031.

It is an arithmetic number, because the mean of its divisors is an integer number (3938429649).

Almost surely, 2^51053131505 is an apocalyptic number.

It is an amenable number.

51053131505 is a deficient number, since it is larger than the sum of its proper divisors (11961742879).

51053131505 is a wasteful number, since it uses less digits than its factorization.

51053131505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418196.

The product of its (nonzero) digits is 5625, while the sum is 29.

The spelling of 51053131505 in words is "fifty-one billion, fifty-three million, one hundred thirty-one thousand, five hundred five".