53105313 has 4 divisors (see below), whose sum is σ = 70807088. Its totient is φ = 35403540.

The previous prime is 53105287. The next prime is 53105333. The reversal of 53105313 is 31350135.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 53105313 - 2⁵ = 53105281 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53105313.

It is not an unprimeable number, because it can be changed into a prime (53105333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8850883 + ... + 8850888.

It is an arithmetic number, because the mean of its divisors is an integer number (17701772).

Almost surely, 2^53105313 is an apocalyptic number.

It is an amenable number.

53105313 is a deficient number, since it is larger than the sum of its proper divisors (17701775).

53105313 is a wasteful number, since it uses less digits than its factorization.

53105313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17701774.

The product of its (nonzero) digits is 675, while the sum is 21.

The square root of 53105313 is about 7287.3392263569. The cubic root of 53105313 is about 375.8772068661.

Adding to 53105313 its reverse (31350135), we get a palindrome (84455448).

The spelling of 53105313 in words is "fifty-three million, one hundred five thousand, three hundred thirteen".