51966944533 has 16 divisors (see below), whose sum is σ = 62045819136. Its totient is φ = 42556377600.

The previous prime is 51966944507. The next prime is 51966944567. The reversal of 51966944533 is 33544966915.

It is a cyclic number.

It is not a de Polignac number, because 51966944533 - 2⁵ = 51966944501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51966944833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51868 + ... + 326533.

It is an arithmetic number, because the mean of its divisors is an integer number (3877863696).

Almost surely, 2^51966944533 is an apocalyptic number.

It is an amenable number.

51966944533 is a deficient number, since it is larger than the sum of its proper divisors (10078874603).

51966944533 is a wasteful number, since it uses less digits than its factorization.

51966944533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379284.

The product of its digits is 10497600, while the sum is 55.

The spelling of 51966944533 in words is "fifty-one billion, nine hundred sixty-six million, nine hundred forty-four thousand, five hundred thirty-three".