53643463 has 4 divisors (see below), whose sum is σ = 53972728. Its totient is φ = 53314200.

The previous prime is 53643413. The next prime is 53643493. The reversal of 53643463 is 36434635.

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 53643463 - 2⁹ = 53642951 is a prime.

It is a super-2 number, since 2×53643463² = 5755242245264738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53643413) 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, 164388 + ... + 164713.

It is an arithmetic number, because the mean of its divisors is an integer number (13493182).

Almost surely, 2^53643463 is an apocalyptic number.

53643463 is a deficient number, since it is larger than the sum of its proper divisors (329265).

53643463 is a wasteful number, since it uses less digits than its factorization.

53643463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329264.

The product of its digits is 77760, while the sum is 34.

The square root of 53643463 is about 7324.1697823030. The cubic root of 53643463 is about 377.1426098716.

The spelling of 53643463 in words is "fifty-three million, six hundred forty-three thousand, four hundred sixty-three".