53669893 has 4 divisors (see below), whose sum is σ = 53791488. Its totient is φ = 53548300.

The previous prime is 53669873. The next prime is 53669909. The reversal of 53669893 is 39896635.

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 a de Polignac number, because none of the positive numbers 2^k-53669893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53669843) 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 3 ways as a sum of consecutive naturals, for example, 60133 + ... + 61018.

It is an arithmetic number, because the mean of its divisors is an integer number (13447872).

Almost surely, 2^53669893 is an apocalyptic number.

It is an amenable number.

53669893 is a deficient number, since it is larger than the sum of its proper divisors (121595).

53669893 is a wasteful number, since it uses less digits than its factorization.

53669893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121594.

The product of its digits is 1049760, while the sum is 49.

The square root of 53669893 is about 7325.9738601772. The cubic root of 53669893 is about 377.2045387753.

The spelling of 53669893 in words is "fifty-three million, six hundred sixty-nine thousand, eight hundred ninety-three".