66448252 has 24 divisors (see below), whose sum is σ = 129272192. Its totient is φ = 29678400.

The previous prime is 66448241. The next prime is 66448259. The reversal of 66448252 is 25284466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66448259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18999 + ... + 22222.

Almost surely, 2^66448252 is an apocalyptic number.

66448252 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

66448252 is a deficient number, since it is larger than the sum of its proper divisors (62823940).

66448252 is a wasteful number, since it uses less digits than its factorization.

66448252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41269 (or 41267 counting only the distinct ones).

The product of its digits is 92160, while the sum is 37.

The square root of 66448252 is about 8151.5797242007. The cubic root of 66448252 is about 405.0368345302.

The spelling of 66448252 in words is "sixty-six million, four hundred forty-eight thousand, two hundred fifty-two".