72522559 has 2 divisors, whose sum is σ = 72522560. Its totient is φ = 72522558.

The previous prime is 72522557. The next prime is 72522613. The reversal of 72522559 is 95522527.

It is a weak prime.

It is an emirp because it is prime and its reverse (95522527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72522559 - 2¹ = 72522557 is a prime.

Together with 72522557, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72522557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36261279 + 36261280.

It is an arithmetic number, because the mean of its divisors is an integer number (36261280).

Almost surely, 2^72522559 is an apocalyptic number.

72522559 is a deficient number, since it is larger than the sum of its proper divisors (1).

72522559 is an equidigital number, since it uses as much as digits as its factorization.

72522559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63000, while the sum is 37.

The square root of 72522559 is about 8516.0177900237. The cubic root of 72522559 is about 417.0207900045.

The spelling of 72522559 in words is "seventy-two million, five hundred twenty-two thousand, five hundred fifty-nine".