52190321 has 8 divisors (see below), whose sum is σ = 55005600. Its totient is φ = 49381920.

The previous prime is 52190309. The next prime is 52190371. The reversal of 52190321 is 12309125.

52190321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 52190321 - 2¹⁴ = 52173937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52190371) 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, 23426 + ... + 25556.

It is an arithmetic number, because the mean of its divisors is an integer number (6875700).

Almost surely, 2^52190321 is an apocalyptic number.

It is an amenable number.

52190321 is a deficient number, since it is larger than the sum of its proper divisors (2815279).

52190321 is a wasteful number, since it uses less digits than its factorization.

52190321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3439.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 52190321 is about 7224.2868852227. The cubic root of 52190321 is about 373.7059300096.

Adding to 52190321 its reverse (12309125), we get a palindrome (64499446).

The spelling of 52190321 in words is "fifty-two million, one hundred ninety thousand, three hundred twenty-one".