53214389 has 4 divisors (see below), whose sum is σ = 53232300. Its totient is φ = 53196480.

The previous prime is 53214361. The next prime is 53214431. The reversal of 53214389 is 98341235.

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 38850289 + 14364100 = 6233^2 + 3790^2 .

It is a cyclic number.

It is not a de Polignac number, because 53214389 - 2¹⁶ = 53148853 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53214989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3314 + ... + 10835.

It is an arithmetic number, because the mean of its divisors is an integer number (13308075).

Almost surely, 2^53214389 is an apocalyptic number.

It is an amenable number.

53214389 is a deficient number, since it is larger than the sum of its proper divisors (17911).

53214389 is a wasteful number, since it uses less digits than its factorization.

53214389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17910.

The product of its digits is 25920, while the sum is 35.

The square root of 53214389 is about 7294.8193260697. The cubic root of 53214389 is about 376.1343760124.

The spelling of 53214389 in words is "fifty-three million, two hundred fourteen thousand, three hundred eighty-nine".