50992121 has 8 divisors (see below), whose sum is σ = 53109000. Its totient is φ = 48899200.

The previous prime is 50992093. The next prime is 50992147. The reversal of 50992121 is 12129905.

50992121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2062096 + 48930025 = 1436^2 + 6995^2 .

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 50992121 - 2¹⁰ = 50991097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50992021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1580 + ... + 10221.

It is an arithmetic number, because the mean of its divisors is an integer number (6638625).

Almost surely, 2^50992121 is an apocalyptic number.

It is an amenable number.

50992121 is a deficient number, since it is larger than the sum of its proper divisors (2116879).

50992121 is a wasteful number, since it uses less digits than its factorization.

50992121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11979.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 50992121 is about 7140.8767668963. The cubic root of 50992121 is about 370.8238787417.

The spelling of 50992121 in words is "fifty million, nine hundred ninety-two thousand, one hundred twenty-one".