50655656551 has 8 divisors (see below), whose sum is σ = 53638082064. Its totient is φ = 47673528960.

The previous prime is 50655656509. The next prime is 50655656561. The reversal of 50655656551 is 15565655605.

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 50655656551 - 2⁹ = 50655656039 is a prime.

It is a super-2 number, since 2×50655656551² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50655656495 and 50655656504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50655656561) 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, 342256 + ... + 467386.

It is an arithmetic number, because the mean of its divisors is an integer number (6704760258).

Almost surely, 2^50655656551 is an apocalyptic number.

50655656551 is a deficient number, since it is larger than the sum of its proper divisors (2982425513).

50655656551 is a wasteful number, since it uses less digits than its factorization.

50655656551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148961.

The product of its (nonzero) digits is 3375000, while the sum is 49.

The spelling of 50655656551 in words is "fifty billion, six hundred fifty-five million, six hundred fifty-six thousand, five hundred fifty-one".