53115743 has 4 divisors (see below), whose sum is σ = 53317968. Its totient is φ = 52913520.

The previous prime is 53115737. The next prime is 53115847. The reversal of 53115743 is 34751135.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53115743 - 2¹⁴ = 53099359 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 (53115703) 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, 100718 + ... + 101243.

It is an arithmetic number, because the mean of its divisors is an integer number (13329492).

Almost surely, 2^53115743 is an apocalyptic number.

53115743 is a deficient number, since it is larger than the sum of its proper divisors (202225).

53115743 is a wasteful number, since it uses less digits than its factorization.

53115743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202224.

The product of its digits is 6300, while the sum is 29.

The square root of 53115743 is about 7288.0548159300. The cubic root of 53115743 is about 375.9018129580.

Adding to 53115743 its reverse (34751135), we get a palindrome (87866878).

The spelling of 53115743 in words is "fifty-three million, one hundred fifteen thousand, seven hundred forty-three".