53566463 has 4 divisors (see below), whose sum is σ = 53589048. Its totient is φ = 53543880.

The previous prime is 53566423. The next prime is 53566477. The reversal of 53566463 is 36466535.

It is a happy number.

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 53566463 - 2⁶ = 53566399 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 (53566423) 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, 7253 + ... + 12638.

It is an arithmetic number, because the mean of its divisors is an integer number (13397262).

Almost surely, 2^53566463 is an apocalyptic number.

53566463 is a deficient number, since it is larger than the sum of its proper divisors (22585).

53566463 is a wasteful number, since it uses less digits than its factorization.

53566463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22584.

The product of its digits is 194400, while the sum is 38.

The square root of 53566463 is about 7318.9113261468. The cubic root of 53566463 is about 376.9620728895.

Subtracting from 53566463 its sum of digits (38), we obtain a triangular number (53566425 = T₁₀₃₅₀).

The spelling of 53566463 in words is "fifty-three million, five hundred sixty-six thousand, four hundred sixty-three".