53355636 has 18 divisors (see below), whose sum is σ = 134871282. Its totient is φ = 17785200.

The previous prime is 53355623. The next prime is 53355671. The reversal of 53355636 is 63655335.

It can be written as a sum of positive squares in only one way, i.e., 38192400 + 15163236 = 6180^2 + 3894^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1482101 = 53355636 / (5 + 3 + 3 + 5 + 5 + 6 + 3 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 53355636.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 741015 + ... + 741086.

It is an arithmetic number, because the mean of its divisors is an integer number (7492849).

Almost surely, 2^53355636 is an apocalyptic number.

It is an amenable number.

53355636 is an abundant number, since it is smaller than the sum of its proper divisors (81515646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53355636 is a wasteful number, since it uses less digits than its factorization.

53355636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482111 (or 1482106 counting only the distinct ones).

The product of its digits is 121500, while the sum is 36.

The square root of 53355636 is about 7304.4942330048. The cubic root of 53355636 is about 376.4668732725.

It can be divided in two parts, 533 and 55636, that added together give a square (56169 = 237²).

The spelling of 53355636 in words is "fifty-three million, three hundred fifty-five thousand, six hundred thirty-six".