67272565 has 8 divisors (see below), whose sum is σ = 81526968. Its totient is φ = 53284800.

The previous prime is 67272563. The next prime is 67272581. The reversal of 67272565 is 56527276.

It can be written as a sum of positive squares in 4 ways, for example, as 41486481 + 25786084 = 6441^2 + 5078^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67272565 - 2¹ = 67272563 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67272563) 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, 66102 + ... + 67111.

It is an arithmetic number, because the mean of its divisors is an integer number (10190871).

Almost surely, 2^67272565 is an apocalyptic number.

It is an amenable number.

67272565 is a deficient number, since it is larger than the sum of its proper divisors (14254403).

67272565 is a wasteful number, since it uses less digits than its factorization.

67272565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133319.

The product of its digits is 176400, while the sum is 40.

The square root of 67272565 is about 8201.9854303699. The cubic root of 67272565 is about 406.7048289756.

It can be divided in two parts, 672 and 72565, that added together give a palindrome (73237).

The spelling of 67272565 in words is "sixty-seven million, two hundred seventy-two thousand, five hundred sixty-five".