53605205 has 4 divisors (see below), whose sum is σ = 64326252. Its totient is φ = 42884160.

The previous prime is 53605187. The next prime is 53605241. The reversal of 53605205 is 50250635.

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 10387729 + 43217476 = 3223^2 + 6574^2 .

It is not a de Polignac number, because 53605205 - 2¹⁸ = 53343061 is a prime.

It is a Duffinian 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, 5360516 + ... + 5360525.

It is an arithmetic number, because the mean of its divisors is an integer number (16081563).

Almost surely, 2^53605205 is an apocalyptic number.

It is an amenable number.

53605205 is a deficient number, since it is larger than the sum of its proper divisors (10721047).

53605205 is a wasteful number, since it uses less digits than its factorization.

53605205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10721046.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 53605205 is about 7321.5575528708. The cubic root of 53605205 is about 377.0529303924.

The spelling of 53605205 in words is "fifty-three million, six hundred five thousand, two hundred five".