51216652535 has 8 divisors (see below), whose sum is σ = 61467880320. Its totient is φ = 40968057184.

The previous prime is 51216652507. The next prime is 51216652537. The reversal of 51216652535 is 53525661215.

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 51216652535 - 2¹⁰ = 51216651511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51216652492 and 51216652501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51216652537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 615047 + ... + 693336.

It is an arithmetic number, because the mean of its divisors is an integer number (7683485040).

Almost surely, 2^51216652535 is an apocalyptic number.

51216652535 is a deficient number, since it is larger than the sum of its proper divisors (10251227785).

51216652535 is a wasteful number, since it uses less digits than its factorization.

51216652535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316217.

The product of its digits is 270000, while the sum is 41.

The spelling of 51216652535 in words is "fifty-one billion, two hundred sixteen million, six hundred fifty-two thousand, five hundred thirty-five".