53283865 has 16 divisors (see below), whose sum is σ = 67908240. Its totient is φ = 39997440.

The previous prime is 53283859. The next prime is 53283883. The reversal of 53283865 is 56838235.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 9406489 + 43877376 = 3067^2 + 6624^2 .

It is not a de Polignac number, because 53283865 - 2¹⁵ = 53251097 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35041 + ... + 36529.

It is an arithmetic number, because the mean of its divisors is an integer number (4244265).

Almost surely, 2^53283865 is an apocalyptic number.

It is an amenable number.

53283865 is a deficient number, since it is larger than the sum of its proper divisors (14624375).

53283865 is a wasteful number, since it uses less digits than its factorization.

53283865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932.

The product of its digits is 172800, while the sum is 40.

The square root of 53283865 is about 7299.5797824258. The cubic root of 53283865 is about 376.2979968423.

The spelling of 53283865 in words is "fifty-three million, two hundred eighty-three thousand, eight hundred sixty-five".