50155129 has 4 divisors (see below), whose sum is σ = 50642176. Its totient is φ = 49668084.

The previous prime is 50155121. The next prime is 50155141. The reversal of 50155129 is 92155105.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50155129 - 2³ = 50155121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50155097 and 50155106.

It is not an unprimeable number, because it can be changed into a prime (50155121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243369 + ... + 243574.

It is an arithmetic number, because the mean of its divisors is an integer number (12660544).

Almost surely, 2^50155129 is an apocalyptic number.

It is an amenable number.

50155129 is a deficient number, since it is larger than the sum of its proper divisors (487047).

50155129 is a wasteful number, since it uses less digits than its factorization.

50155129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487046.

The product of its (nonzero) digits is 2250, while the sum is 28.

The square root of 50155129 is about 7082.0285935599. The cubic root of 50155129 is about 368.7837565956.

The spelling of 50155129 in words is "fifty million, one hundred fifty-five thousand, one hundred twenty-nine".