53853869 has 8 divisors (see below), whose sum is σ = 56343168. Its totient is φ = 51420640.

The previous prime is 53853857. The next prime is 53853871. The reversal of 53853869 is 96835835.

It is a happy number.

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 53853869 - 2⁴ = 53853853 is a prime.

It is a super-2 number, since 2×53853869² = 5800478412538322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53853829) 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 7 ways as a sum of consecutive naturals, for example, 12047 + ... + 15900.

It is an arithmetic number, because the mean of its divisors is an integer number (7042896).

Almost surely, 2^53853869 is an apocalyptic number.

It is an amenable number.

53853869 is a deficient number, since it is larger than the sum of its proper divisors (2489299).

53853869 is a wasteful number, since it uses less digits than its factorization.

53853869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28035.

The product of its digits is 777600, while the sum is 47.

The square root of 53853869 is about 7338.5195373454. The cubic root of 53853869 is about 377.6350559843.

The spelling of 53853869 in words is "fifty-three million, eight hundred fifty-three thousand, eight hundred sixty-nine".