53407205 has 4 divisors (see below), whose sum is σ = 64088652. Its totient is φ = 42725760.

The previous prime is 53407201. The next prime is 53407223. The reversal of 53407205 is 50270435.

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 10452289 + 42954916 = 3233^2 + 6554^2 .

It is not a de Polignac number, because 53407205 - 2² = 53407201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53407201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5340716 + ... + 5340725.

It is an arithmetic number, because the mean of its divisors is an integer number (16022163).

Almost surely, 2^53407205 is an apocalyptic number.

It is an amenable number.

53407205 is a deficient number, since it is larger than the sum of its proper divisors (10681447).

53407205 is a wasteful number, since it uses less digits than its factorization.

53407205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10681446.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 53407205 is about 7308.0233305594. The cubic root of 53407205 is about 376.5881211253.

The spelling of 53407205 in words is "fifty-three million, four hundred seven thousand, two hundred five".