53765243 has 8 divisors (see below), whose sum is σ = 61581312. Its totient is φ = 45983016.

The previous prime is 53765213. The next prime is 53765251. The reversal of 53765243 is 34256735.

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 53765243 - 2¹⁶ = 53699707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53765213) 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, 4955 + ... + 11492.

It is an arithmetic number, because the mean of its divisors is an integer number (7697664).

Almost surely, 2^53765243 is an apocalyptic number.

53765243 is a deficient number, since it is larger than the sum of its proper divisors (7816069).

53765243 is a wasteful number, since it uses less digits than its factorization.

53765243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16921.

The product of its digits is 75600, while the sum is 35.

The square root of 53765243 is about 7332.4786395870. The cubic root of 53765243 is about 377.4277873070.

The spelling of 53765243 in words is "fifty-three million, seven hundred sixty-five thousand, two hundred forty-three".