67253320 has 32 divisors (see below), whose sum is σ = 156540600. Its totient is φ = 25973248.

The previous prime is 67253317. The next prime is 67253321. The reversal of 67253320 is 2335276.

It can be written as a sum of positive squares in 4 ways, for example, as 48191364 + 19061956 = 6942^2 + 4366^2 .

It is not an unprimeable number, because it can be changed into a prime (67253321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27829 + ... + 30148.

Almost surely, 2^67253320 is an apocalyptic number.

It is an amenable number.

67253320 is an abundant number, since it is smaller than the sum of its proper divisors (89287280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67253320 is a wasteful number, since it uses less digits than its factorization.

67253320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58017 (or 58013 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 67253320 is about 8200.8121549027. The cubic root of 67253320 is about 406.6660425802. Note that the first 3 decimals are identical.

Adding to 67253320 its reverse (2335276), we get a palindrome (69588596).

The spelling of 67253320 in words is "sixty-seven million, two hundred fifty-three thousand, three hundred twenty".