53660353 has 4 divisors (see below), whose sum is σ = 55510740. Its totient is φ = 51809968.

The previous prime is 53660339. The next prime is 53660359. The reversal of 53660353 is 35306635.

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 12341169 + 41319184 = 3513^2 + 6428^2 .

It is a cyclic number.

It is not a de Polignac number, because 53660353 - 2⁹ = 53659841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53660359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 925150 + ... + 925207.

It is an arithmetic number, because the mean of its divisors is an integer number (13877685).

Almost surely, 2^53660353 is an apocalyptic number.

It is an amenable number.

53660353 is a deficient number, since it is larger than the sum of its proper divisors (1850387).

53660353 is a wasteful number, since it uses less digits than its factorization.

53660353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850386.

The product of its (nonzero) digits is 24300, while the sum is 31.

The square root of 53660353 is about 7325.3227232662. The cubic root of 53660353 is about 377.1821876685.

Adding to 53660353 its reverse (35306635), we get a palindrome (88966988).

The spelling of 53660353 in words is "fifty-three million, six hundred sixty thousand, three hundred fifty-three".