72559759 has 2 divisors, whose sum is σ = 72559760. Its totient is φ = 72559758.

The previous prime is 72559717. The next prime is 72559763. The reversal of 72559759 is 95795527.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72559759 - 2²¹ = 70462607 is a prime.

It is a super-2 number, since 2×72559759² = 10529837252276162, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72559789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36279879 + 36279880.

It is an arithmetic number, because the mean of its divisors is an integer number (36279880).

Almost surely, 2^72559759 is an apocalyptic number.

72559759 is a deficient number, since it is larger than the sum of its proper divisors (1).

72559759 is an equidigital number, since it uses as much as digits as its factorization.

72559759 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 992250, while the sum is 49.

The square root of 72559759 is about 8518.2016294521. The cubic root of 72559759 is about 417.0920805652.

The spelling of 72559759 in words is "seventy-two million, five hundred fifty-nine thousand, seven hundred fifty-nine".