50661507535 has 16 divisors (see below), whose sum is σ = 60983709696. Its totient is φ = 40402806048.

The previous prime is 50661507493. The next prime is 50661507539. The reversal of 50661507535 is 53570516605.

It is a cyclic number.

It is not a de Polignac number, because 50661507535 - 2¹⁷ = 50661376463 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50661507491 and 50661507500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50661507539) 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, 2121874 + ... + 2145616.

It is an arithmetic number, because the mean of its divisors is an integer number (3811481856).

Almost surely, 2^50661507535 is an apocalyptic number.

50661507535 is a deficient number, since it is larger than the sum of its proper divisors (10322202161).

50661507535 is a wasteful number, since it uses less digits than its factorization.

50661507535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25062.

The product of its (nonzero) digits is 472500, while the sum is 43.

The spelling of 50661507535 in words is "fifty billion, six hundred sixty-one million, five hundred seven thousand, five hundred thirty-five".