55335289 has 8 divisors (see below), whose sum is σ = 58657608. Its totient is φ = 52020480.

The previous prime is 55335229. The next prime is 55335307. The reversal of 55335289 is 98253355.

It can be written as a sum of positive squares in 4 ways, for example, as 6335289 + 49000000 = 2517^2 + 7000^2 .

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-55335289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55335229) 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, 22299 + ... + 24655.

It is an arithmetic number, because the mean of its divisors is an integer number (7332201).

Almost surely, 2^55335289 is an apocalyptic number.

It is an amenable number.

55335289 is a deficient number, since it is larger than the sum of its proper divisors (3322319).

55335289 is a wasteful number, since it uses less digits than its factorization.

55335289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755.

The product of its digits is 162000, while the sum is 40.

The square root of 55335289 is about 7438.7693202572. The cubic root of 55335289 is about 381.0664617239.

The spelling of 55335289 in words is "fifty-five million, three hundred thirty-five thousand, two hundred eighty-nine".