53109569 has 8 divisors (see below), whose sum is σ = 53643840. Its totient is φ = 52578000.

The previous prime is 53109559. The next prime is 53109583. The reversal of 53109569 is 96590135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53109569 is a prime.

It is a super-2 number, since 2×53109569² = 5641252638731522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53109559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76514 + ... + 77204.

It is an arithmetic number, because the mean of its divisors is an integer number (6705480).

Almost surely, 2^53109569 is an apocalyptic number.

It is an amenable number.

53109569 is a deficient number, since it is larger than the sum of its proper divisors (534271).

53109569 is a wasteful number, since it uses less digits than its factorization.

53109569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351.

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 53109569 is about 7287.6312338098. The cubic root of 53109569 is about 375.8872478618.

The spelling of 53109569 in words is "fifty-three million, one hundred nine thousand, five hundred sixty-nine".