53975569 has 4 divisors (see below), whose sum is σ = 54298944. Its totient is φ = 53652196.

The previous prime is 53975567. The next prime is 53975587. The reversal of 53975569 is 96557935.

It is a happy number.

53975569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 53975569 - 2¹ = 53975567 is a prime.

It is a super-2 number, since 2×53975569² = 5826724097747522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53975567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161437 + ... + 161770.

It is an arithmetic number, because the mean of its divisors is an integer number (13574736).

Almost surely, 2^53975569 is an apocalyptic number.

It is an amenable number.

53975569 is a deficient number, since it is larger than the sum of its proper divisors (323375).

53975569 is a wasteful number, since it uses less digits than its factorization.

53975569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323374.

The product of its digits is 1275750, while the sum is 49.

The square root of 53975569 is about 7346.8067212905. The cubic root of 53975569 is about 377.9193042751.

The spelling of 53975569 in words is "fifty-three million, nine hundred seventy-five thousand, five hundred sixty-nine".