53405163 has 40 divisors (see below), whose sum is σ = 91998720. Its totient is φ = 30242160.

The previous prime is 53405141. The next prime is 53405201. The reversal of 53405163 is 36150435.

It is not a de Polignac number, because 53405163 - 2¹² = 53401067 is a prime.

It is a super-2 number, since 2×53405163² = 5704222870113138, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (53405123) 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 39 ways as a sum of consecutive naturals, for example, 73918 + ... + 74636.

It is an arithmetic number, because the mean of its divisors is an integer number (2299968).

Almost surely, 2^53405163 is an apocalyptic number.

53405163 is a deficient number, since it is larger than the sum of its proper divisors (38593557).

53405163 is a wasteful number, since it uses less digits than its factorization.

53405163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869 (or 860 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 53405163 is about 7307.8836197630. The cubic root of 53405163 is about 376.5833215061.

Adding to 53405163 its reverse (36150435), we get a palindrome (89555598).

The spelling of 53405163 in words is "fifty-three million, four hundred five thousand, one hundred sixty-three".