50661129 has 8 divisors (see below), whose sum is σ = 68168320. Its totient is φ = 33464016.

The previous prime is 50661109. The next prime is 50661131. The reversal of 50661129 is 92116605.

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

It is not a de Polignac number, because 50661129 - 2²⁵ = 17106697 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50661096 and 50661105.

It is not an unprimeable number, because it can be changed into a prime (50661109) 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, 77137 + ... + 77790.

It is an arithmetic number, because the mean of its divisors is an integer number (8521040).

Almost surely, 2^50661129 is an apocalyptic number.

It is an amenable number.

50661129 is a deficient number, since it is larger than the sum of its proper divisors (17507191).

50661129 is a wasteful number, since it uses less digits than its factorization.

50661129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155039.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 50661129 is about 7117.6631698894. The cubic root of 50661129 is about 370.0197919776.

The spelling of 50661129 in words is "fifty million, six hundred sixty-one thousand, one hundred twenty-nine".