51331554332445 has 32 divisors (see below), whose sum is σ = 84420650932992. Its totient is φ = 26622583350272.

The previous prime is 51331554332411. The next prime is 51331554332483. The reversal of 51331554332445 is 54423345513315.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 51331554332445 - 2⁶ = 51331554332381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51331554332394 and 51331554332403.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 285609249 + ... + 285788918.

It is an arithmetic number, because the mean of its divisors is an integer number (2638145341656).

Almost surely, 2^{51331554332445} is an apocalyptic number.

It is an amenable number.

51331554332445 is a deficient number, since it is larger than the sum of its proper divisors (33089096600547).

51331554332445 is a wasteful number, since it uses less digits than its factorization.

51331554332445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571398341.

The product of its digits is 6480000, while the sum is 48.

The spelling of 51331554332445 in words is "fifty-one trillion, three hundred thirty-one billion, five hundred fifty-four million, three hundred thirty-two thousand, four hundred forty-five".