66589253 has 8 divisors (see below), whose sum is σ = 68234400. Its totient is φ = 64958608.

The previous prime is 66589183. The next prime is 66589273. The reversal of 66589253 is 35298566.

It is a happy number.

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 66589253 - 2²² = 62394949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66589273) 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, 5978 + ... + 12996.

It is an arithmetic number, because the mean of its divisors is an integer number (8529300).

Almost surely, 2^66589253 is an apocalyptic number.

It is an amenable number.

66589253 is a deficient number, since it is larger than the sum of its proper divisors (1645147).

66589253 is a wasteful number, since it uses less digits than its factorization.

66589253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7251.

The product of its digits is 388800, while the sum is 44.

The square root of 66589253 is about 8160.2238327144. The cubic root of 66589253 is about 405.3231237299.

The spelling of 66589253 in words is "sixty-six million, five hundred eighty-nine thousand, two hundred fifty-three".