52144429 has 4 divisors (see below), whose sum is σ = 52160284. Its totient is φ = 52128576.

The previous prime is 52144403. The next prime is 52144441. The reversal of 52144429 is 92444125.

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 8940100 + 43204329 = 2990^2 + 6573^2 .

It is a cyclic number.

It is not a de Polignac number, because 52144429 - 2¹⁹ = 51620141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52144429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52144229) 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, 942 + ... + 10255.

It is an arithmetic number, because the mean of its divisors is an integer number (13040071).

Almost surely, 2^52144429 is an apocalyptic number.

It is an amenable number.

52144429 is a deficient number, since it is larger than the sum of its proper divisors (15855).

52144429 is a wasteful number, since it uses less digits than its factorization.

52144429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15854.

The product of its digits is 11520, while the sum is 31.

The square root of 52144429 is about 7221.1099562325. The cubic root of 52144429 is about 373.5963621722.

The spelling of 52144429 in words is "fifty-two million, one hundred forty-four thousand, four hundred twenty-nine".