55653 has 8 divisors (see below), whose sum is σ = 79968. Its totient is φ = 34224.

The previous prime is 55639. The next prime is 55661. The reversal of 55653 is 35655.

55653 = T₅₂ + T₅₃ + ... + T₇₇.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55653 - 2⁵ = 55621 is a prime.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55603) 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, 675 + ... + 752.

It is an arithmetic number, because the mean of its divisors is an integer number (9996).

2⁵⁵⁶⁵³ is an apocalyptic number.

It is an amenable number.

55653 is a deficient number, since it is larger than the sum of its proper divisors (24315).

55653 is a wasteful number, since it uses less digits than its factorization.

55653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443.

The product of its digits is 2250, while the sum is 24.

The square root of 55653 is about 235.9088807146. The cubic root of 55653 is about 38.1794375964.

The spelling of 55653 in words is "fifty-five thousand, six hundred fifty-three".