55573 has 8 divisors (see below), whose sum is σ = 67392. Its totient is φ = 44736.

The previous prime is 55547. The next prime is 55579. The reversal of 55573 is 37555.

55573 = T₆₂ + T₆₃ + ... + T₈₂.

It is a happy number.

55573 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

55573 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.

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 55573 - 2⁵ = 55541 is a prime.

It is a Duffinian number.

55573 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55579) 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, 115 + ... + 352.

It is an arithmetic number, because the mean of its divisors is an integer number (8424).

2⁵⁵⁵⁷³ is an apocalyptic number.

It is an amenable number.

55573 is a deficient number, since it is larger than the sum of its proper divisors (11819).

55573 is a wasteful number, since it uses less digits than its factorization.

55573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491.

The product of its digits is 2625, while the sum is 25.

The square root of 55573 is about 235.7392627459. The cubic root of 55573 is about 38.1611347813.

The spelling of 55573 in words is "fifty-five thousand, five hundred seventy-three".