51406722475533 has 32 divisors (see below), whose sum is σ = 76206089520000. Its totient is φ = 34249562879616.

The previous prime is 51406722475513. The next prime is 51406722475561. The reversal of 51406722475533 is 33557422760415.

51406722475533 is a `hidden beast` number, since 5 + 1 + 4 + 0 + 67 + 2 + 2 + 47 + 5 + 533 = 666.

51406722475533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51406722475533 - 2¹³ = 51406722467341 is a prime.

It is a super-3 number, since 3×51406722475533³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 51406722475533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51406722475513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 294390673 + ... + 294565241.

It is an arithmetic number, because the mean of its divisors is an integer number (2381440297500).

Almost surely, 2^{51406722475533} is an apocalyptic number.

It is an amenable number.

51406722475533 is a deficient number, since it is larger than the sum of its proper divisors (24799367044467).

51406722475533 is a wasteful number, since it uses less digits than its factorization.

51406722475533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181386 (or 181380 counting only the distinct ones).

The product of its (nonzero) digits is 21168000, while the sum is 54.

The spelling of 51406722475533 in words is "fifty-one trillion, four hundred six billion, seven hundred twenty-two million, four hundred seventy-five thousand, five hundred thirty-three".