55065533 has 8 divisors (see below), whose sum is σ = 58403448. Its totient is φ = 51738624.

The previous prime is 55065511. The next prime is 55065539. The reversal of 55065533 is 33556055.

It can be written as a sum of positive squares in 4 ways, for example, as 16662724 + 38402809 = 4082^2 + 6197^2 .

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 55065533 - 2⁶ = 55065469 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55065533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55065539) 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, 9035 + ... + 13847.

It is an arithmetic number, because the mean of its divisors is an integer number (7300431).

Almost surely, 2^55065533 is an apocalyptic number.

It is an amenable number.

55065533 is a deficient number, since it is larger than the sum of its proper divisors (3337915).

55065533 is a wasteful number, since it uses less digits than its factorization.

55065533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5503.

The product of its (nonzero) digits is 33750, while the sum is 32.

The square root of 55065533 is about 7420.6154057463. The cubic root of 55065533 is about 380.4462278743.

The spelling of 55065533 in words is "fifty-five million, sixty-five thousand, five hundred thirty-three".