51521300254522 has 16 divisors (see below), whose sum is σ = 88324189192512. Its totient is φ = 22080067205760.

The previous prime is 51521300254517. The next prime is 51521300254573. The reversal of 51521300254522 is 22545200312515.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40183479 + ... + 41445802.

It is an arithmetic number, because the mean of its divisors is an integer number (5520261824532).

Almost surely, 2^{51521300254522} is an apocalyptic number.

51521300254522 is a deficient number, since it is larger than the sum of its proper divisors (36802888937990).

51521300254522 is a wasteful number, since it uses less digits than its factorization.

51521300254522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81674373.

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 51521300254522 in words is "fifty-one trillion, five hundred twenty-one billion, three hundred million, two hundred fifty-four thousand, five hundred twenty-two".