53945869 has 8 divisors (see below), whose sum is σ = 54714528. Its totient is φ = 53182320.

The previous prime is 53945867. The next prime is 53945893. The reversal of 53945869 is 96854935.

53945869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 53945869 - 2¹ = 53945867 is a prime.

It is a super-2 number, since 2×53945869² = 5820313564330322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53945867) 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 7 ways as a sum of consecutive naturals, for example, 23179 + ... + 25399.

It is an arithmetic number, because the mean of its divisors is an integer number (6839316).

Almost surely, 2^53945869 is an apocalyptic number.

It is an amenable number.

53945869 is a deficient number, since it is larger than the sum of its proper divisors (768659).

53945869 is a wasteful number, since it uses less digits than its factorization.

53945869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555.

The product of its digits is 1166400, while the sum is 49.

The square root of 53945869 is about 7344.7851568307. The cubic root of 53945869 is about 377.8499749911.

The spelling of 53945869 in words is "fifty-three million, nine hundred forty-five thousand, eight hundred sixty-nine".