72255163 has 2 divisors, whose sum is σ = 72255164. Its totient is φ = 72255162.

The previous prime is 72255137. The next prime is 72255187. The reversal of 72255163 is 36155227.

It is a strong prime.

It is an emirp because it is prime and its reverse (36155227) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72255163 is a prime.

It is not a weakly prime, because it can be changed into another prime (72255133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36127581 + 36127582.

It is an arithmetic number, because the mean of its divisors is an integer number (36127582).

Almost surely, 2^72255163 is an apocalyptic number.

72255163 is a deficient number, since it is larger than the sum of its proper divisors (1).

72255163 is an equidigital number, since it uses as much as digits as its factorization.

72255163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 31.

The square root of 72255163 is about 8500.3037004568. The cubic root of 72255163 is about 416.5076300431.

The spelling of 72255163 in words is "seventy-two million, two hundred fifty-five thousand, one hundred sixty-three".