72530089 has 2 divisors, whose sum is σ = 72530090. Its totient is φ = 72530088.

The previous prime is 72530083. The next prime is 72530093. The reversal of 72530089 is 98003527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72114064 + 416025 = 8492^2 + 645^2 .

It is a cyclic number.

It is not a de Polignac number, because 72530089 - 2¹¹ = 72528041 is a prime.

It is a super-2 number, since 2×72530089² = 10521227620695842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (72530083) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36265044 + 36265045.

It is an arithmetic number, because the mean of its divisors is an integer number (36265045).

Almost surely, 2^72530089 is an apocalyptic number.

It is an amenable number.

72530089 is a deficient number, since it is larger than the sum of its proper divisors (1).

72530089 is an equidigital number, since it uses as much as digits as its factorization.

72530089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 72530089 is about 8516.4598865961. The cubic root of 72530089 is about 417.0352225614.

The spelling of 72530089 in words is "seventy-two million, five hundred thirty thousand, eighty-nine".