51463523533 has 8 divisors (see below), whose sum is σ = 52263493688. Its totient is φ = 50669051904.

The previous prime is 51463523521. The next prime is 51463523563. The reversal of 51463523533 is 33532536415.

It can be written as a sum of positive squares in 4 ways, for example, as 17505142249 + 33958381284 = 132307^2 + 184278^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51463523533 - 2⁹ = 51463523021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51463523563) 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 7 ways as a sum of consecutive naturals, for example, 1355766 + ... + 1393207.

It is an arithmetic number, because the mean of its divisors is an integer number (6532936711).

Almost surely, 2^51463523533 is an apocalyptic number.

It is an amenable number.

51463523533 is a deficient number, since it is larger than the sum of its proper divisors (799970155).

51463523533 is a wasteful number, since it uses less digits than its factorization.

51463523533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2749263.

The product of its digits is 486000, while the sum is 40.

The spelling of 51463523533 in words is "fifty-one billion, four hundred sixty-three million, five hundred twenty-three thousand, five hundred thirty-three".