53888889 has 8 divisors (see below), whose sum is σ = 73069920. Its totient is φ = 35316896.

The previous prime is 53888851. The next prime is 53888893. The reversal of 53888889 is 98888835.

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 53888889 - 2⁹ = 53888377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53888899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152052 + ... + 152405.

It is an arithmetic number, because the mean of its divisors is an integer number (9133740).

Almost surely, 2^53888889 is an apocalyptic number.

53888889 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

53888889 is a deficient number, since it is larger than the sum of its proper divisors (19181031).

53888889 is a wasteful number, since it uses less digits than its factorization.

53888889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304519.

The product of its digits is 4423680, while the sum is 57.

The square root of 53888889 is about 7340.9051894164. The cubic root of 53888889 is about 377.7168942029.

The spelling of 53888889 in words is "fifty-three million, eight hundred eighty-eight thousand, eight hundred eighty-nine".