50552129 has 4 divisors (see below), whose sum is σ = 51016020. Its totient is φ = 50088240.

The previous prime is 50552113. The next prime is 50552143. The reversal of 50552129 is 92125505.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32718400 + 17833729 = 5720^2 + 4223^2 .

It is a cyclic number.

It is not a de Polignac number, because 50552129 - 2⁴ = 50552113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50552149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231782 + ... + 231999.

It is an arithmetic number, because the mean of its divisors is an integer number (12754005).

Almost surely, 2^50552129 is an apocalyptic number.

It is an amenable number.

50552129 is a deficient number, since it is larger than the sum of its proper divisors (463891).

50552129 is a wasteful number, since it uses less digits than its factorization.

50552129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463890.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 50552129 is about 7110.0020393809. The cubic root of 50552129 is about 369.7542292847.

Subtracting from 50552129 its sum of digits (29), we obtain a square (50552100 = 7110²).

The spelling of 50552129 in words is "fifty million, five hundred fifty-two thousand, one hundred twenty-nine".