53465563 has 4 divisors (see below), whose sum is σ = 56279560. Its totient is φ = 50651568.

The previous prime is 53465539. The next prime is 53465567. The reversal of 53465563 is 36556435.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36556435 = 5 ⋅7311287.

It is not a de Polignac number, because 53465563 - 2²¹ = 51368411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53465567) 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, 1406970 + ... + 1407007.

It is an arithmetic number, because the mean of its divisors is an integer number (14069890).

Almost surely, 2^53465563 is an apocalyptic number.

53465563 is a deficient number, since it is larger than the sum of its proper divisors (2813997).

53465563 is a wasteful number, since it uses less digits than its factorization.

53465563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2813996.

The product of its digits is 162000, while the sum is 37.

The square root of 53465563 is about 7312.0149753676. The cubic root of 53465563 is about 376.7252370176.

The spelling of 53465563 in words is "fifty-three million, four hundred sixty-five thousand, five hundred sixty-three".