53328069 has 6 divisors (see below), whose sum is σ = 77029446. Its totient is φ = 35552040.

The previous prime is 53328059. The next prime is 53328073. The reversal of 53328069 is 96082335.

It can be written as a sum of positive squares in only one way, i.e., 28227969 + 25100100 = 5313^2 + 5010^2 .

It is not a de Polignac number, because 53328069 - 2¹⁶ = 53262533 is a prime.

It is a super-2 number, since 2×53328069² = 5687765886537522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53328059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2962662 + ... + 2962679.

It is an arithmetic number, because the mean of its divisors is an integer number (12838241).

Almost surely, 2^53328069 is an apocalyptic number.

It is an amenable number.

53328069 is a deficient number, since it is larger than the sum of its proper divisors (23701377).

53328069 is a wasteful number, since it uses less digits than its factorization.

53328069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5925347 (or 5925344 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 53328069 is about 7302.6070002431. The cubic root of 53328069 is about 376.4020263266.

The spelling of 53328069 in words is "fifty-three million, three hundred twenty-eight thousand, sixty-nine".