53298909 has 12 divisors (see below), whose sum is σ = 77220156. Its totient is φ = 35425152.

The previous prime is 53298901. The next prime is 53298937. The reversal of 53298909 is 90989235.

Added to its reverse (90989235) it gives a square (144288144 = 12012²).

It can be written as a sum of positive squares in 2 ways, for example, as 25704900 + 27594009 = 5070^2 + 5253^2 .

It is not a de Polignac number, because 53298909 - 2³ = 53298901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53298901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5754 + ... + 11819.

It is an arithmetic number, because the mean of its divisors is an integer number (6435013).

Almost surely, 2^53298909 is an apocalyptic number.

It is an amenable number.

53298909 is a deficient number, since it is larger than the sum of its proper divisors (23921247).

53298909 is a wasteful number, since it uses less digits than its factorization.

53298909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17916 (or 17913 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 53298909 is about 7300.6101799781. The cubic root of 53298909 is about 376.3334077769. Note that the first 3 decimals are identical.

Adding to 53298909 its reverse (90989235), we get a square (144288144 = 12012²).

The spelling of 53298909 in words is "fifty-three million, two hundred ninety-eight thousand, nine hundred nine".