50661565051 has 8 divisors (see below), whose sum is σ = 52421241600. Its totient is φ = 48902736960.

The previous prime is 50661565013. The next prime is 50661565067. The reversal of 50661565051 is 15056516605.

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 50661565051 - 2¹³ = 50661556859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50661564995 and 50661565013.

It is not an unprimeable number, because it can be changed into a prime (50661565001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89410 + ... + 330631.

It is an arithmetic number, because the mean of its divisors is an integer number (6552655200).

Almost surely, 2^50661565051 is an apocalyptic number.

50661565051 is a deficient number, since it is larger than the sum of its proper divisors (1759676549).

50661565051 is a wasteful number, since it uses less digits than its factorization.

50661565051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424229.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 50661565051 in words is "fifty billion, six hundred sixty-one million, five hundred sixty-five thousand, fifty-one".