67220265 has 16 divisors (see below), whose sum is σ = 122917248. Its totient is φ = 30729216.

The previous prime is 67220249. The next prime is 67220269. The reversal of 67220265 is 56202276.

It is not a de Polignac number, because 67220265 - 2⁴ = 67220249 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (67220269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319992 + ... + 320201.

It is an arithmetic number, because the mean of its divisors is an integer number (7682328).

Almost surely, 2^67220265 is an apocalyptic number.

It is an amenable number.

67220265 is a deficient number, since it is larger than the sum of its proper divisors (55696983).

67220265 is a wasteful number, since it uses less digits than its factorization.

67220265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640208.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 67220265 is about 8198.7965580322. The cubic root of 67220265 is about 406.5994062221.

The spelling of 67220265 in words is "sixty-seven million, two hundred twenty thousand, two hundred sixty-five".