53553365 has 4 divisors (see below), whose sum is σ = 64264044. Its totient is φ = 42842688.

The previous prime is 53553329. The next prime is 53553371. The reversal of 53553365 is 56335535.

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 39363076 + 14190289 = 6274^2 + 3767^2 .

It is a cyclic number.

It is not a de Polignac number, because 53553365 - 2¹⁴ = 53536981 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5355332 + ... + 5355341.

It is an arithmetic number, because the mean of its divisors is an integer number (16066011).

Almost surely, 2^53553365 is an apocalyptic number.

It is an amenable number.

53553365 is a deficient number, since it is larger than the sum of its proper divisors (10710679).

53553365 is a wasteful number, since it uses less digits than its factorization.

53553365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10710678.

The product of its digits is 101250, while the sum is 35.

The square root of 53553365 is about 7318.0164662291. The cubic root of 53553365 is about 376.9313456307.

The spelling of 53553365 in words is "fifty-three million, five hundred fifty-three thousand, three hundred sixty-five".