53987205 has 8 divisors (see below), whose sum is σ = 86379552. Its totient is φ = 28793168.

The previous prime is 53987203. The next prime is 53987209. The reversal of 53987205 is 50278935.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53987205 - 2¹ = 53987203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53987203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1799559 + ... + 1799588.

It is an arithmetic number, because the mean of its divisors is an integer number (10797444).

Almost surely, 2^53987205 is an apocalyptic number.

It is an amenable number.

53987205 is a deficient number, since it is larger than the sum of its proper divisors (32392347).

53987205 is a wasteful number, since it uses less digits than its factorization.

53987205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3599155.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 53987205 is about 7347.5985872937. The cubic root of 53987205 is about 377.9464594810.

The spelling of 53987205 in words is "fifty-three million, nine hundred eighty-seven thousand, two hundred five".