53863943 has 8 divisors (see below), whose sum is σ = 61603200. Its totient is φ = 46135800.

The previous prime is 53863919. The next prime is 53863949. The reversal of 53863943 is 34936835.

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 53863943 - 2⁸ = 53863687 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 53863943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53863949) 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, 17468 + ... + 20318.

It is an arithmetic number, because the mean of its divisors is an integer number (7700400).

Almost surely, 2^53863943 is an apocalyptic number.

53863943 is a deficient number, since it is larger than the sum of its proper divisors (7739257).

53863943 is a wasteful number, since it uses less digits than its factorization.

53863943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5557.

The product of its digits is 233280, while the sum is 41.

The square root of 53863943 is about 7339.2058834727. The cubic root of 53863943 is about 377.6586015434.

The spelling of 53863943 in words is "fifty-three million, eight hundred sixty-three thousand, nine hundred forty-three".