52051669 has 4 divisors (see below), whose sum is σ = 52137196. Its totient is φ = 51966144.

The previous prime is 52051667. The next prime is 52051679. The reversal of 52051669 is 96615025.

It is a happy number.

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 3470769 + 48580900 = 1863^2 + 6970^2 .

It is a cyclic number.

It is not a de Polignac number, because 52051669 - 2¹ = 52051667 is a prime.

It is a super-2 number, since 2×52051669² = 5418752491371122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52051667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41844 + ... + 43069.

It is an arithmetic number, because the mean of its divisors is an integer number (13034299).

Almost surely, 2^52051669 is an apocalyptic number.

It is an amenable number.

52051669 is a deficient number, since it is larger than the sum of its proper divisors (85527).

52051669 is an equidigital number, since it uses as much as digits as its factorization.

52051669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85526.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 52051669 is about 7214.6842619757. The cubic root of 52051669 is about 373.3746998345.

The spelling of 52051669 in words is "fifty-two million, fifty-one thousand, six hundred sixty-nine".