72201559 has 2 divisors, whose sum is σ = 72201560. Its totient is φ = 72201558.

The previous prime is 72201523. The next prime is 72201581. The reversal of 72201559 is 95510227.

It is a strong prime.

It is an emirp because it is prime and its reverse (95510227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72201559 - 2⁹ = 72201047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72201559.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72201509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36100779 + 36100780.

It is an arithmetic number, because the mean of its divisors is an integer number (36100780).

Almost surely, 2^72201559 is an apocalyptic number.

72201559 is a deficient number, since it is larger than the sum of its proper divisors (1).

72201559 is an equidigital number, since it uses as much as digits as its factorization.

72201559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 72201559 is about 8497.1500516350. The cubic root of 72201559 is about 416.4046062708.

The spelling of 72201559 in words is "seventy-two million, two hundred one thousand, five hundred fifty-nine".