52142917 has 4 divisors (see below), whose sum is σ = 52212556. Its totient is φ = 52073280.

The previous prime is 52142903. The next prime is 52142921. The reversal of 52142917 is 71924125.

52142917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11195716 + 40947201 = 3346^2 + 6399^2 .

It is a cyclic number.

It is not a de Polignac number, because 52142917 - 2¹⁹ = 51618629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52142947) 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 3 ways as a sum of consecutive naturals, for example, 33684 + ... + 35197.

It is an arithmetic number, because the mean of its divisors is an integer number (13053139).

Almost surely, 2^52142917 is an apocalyptic number.

It is an amenable number.

52142917 is a deficient number, since it is larger than the sum of its proper divisors (69639).

52142917 is an equidigital number, since it uses as much as digits as its factorization.

52142917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69638.

The product of its digits is 5040, while the sum is 31.

The square root of 52142917 is about 7221.0052624271. The cubic root of 52142917 is about 373.5927511558.

The spelling of 52142917 in words is "fifty-two million, one hundred forty-two thousand, nine hundred seventeen".