66582253 has 2 divisors, whose sum is σ = 66582254. Its totient is φ = 66582252.

The previous prime is 66582247. The next prime is 66582311. The reversal of 66582253 is 35228566.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56355049 + 10227204 = 7507^2 + 3198^2 .

It is a cyclic number.

It is not a de Polignac number, because 66582253 - 2¹³ = 66574061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66582223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33291126 + 33291127.

It is an arithmetic number, because the mean of its divisors is an integer number (33291127).

Almost surely, 2^66582253 is an apocalyptic number.

It is an amenable number.

66582253 is a deficient number, since it is larger than the sum of its proper divisors (1).

66582253 is an equidigital number, since it uses as much as digits as its factorization.

66582253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 37.

The square root of 66582253 is about 8159.7949116384. The cubic root of 66582253 is about 405.3089204305.

It can be divided in two parts, 6658 and 2253, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 66582253 in words is "sixty-six million, five hundred eighty-two thousand, two hundred fifty-three".