66053 has 4 divisors (see below), whose sum is σ = 71148. Its totient is φ = 60960.

The previous prime is 66047. The next prime is 66067. The reversal of 66053 is 35066.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9409 + 56644 = 97^2 + 238^2 .

It is a cyclic number.

It is not a de Polignac number, because 66053 - 2⁴ = 66037 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11 and base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2528 + ... + 2553.

It is an arithmetic number, because the mean of its divisors is an integer number (17787).

2⁶⁶⁰⁵³ is an apocalyptic number.

It is an amenable number.

66053 is a deficient number, since it is larger than the sum of its proper divisors (5095).

66053 is a wasteful number, since it uses less digits than its factorization.

66053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5094.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 66053 is about 257.0077819833. The cubic root of 66053 is about 40.4232147726.

It can be divided in two parts, 660 and 53, that multiplied together give a triangular number (34980 = T₂₆₄).

The spelling of 66053 in words is "sixty-six thousand, fifty-three".