72554593 has 2 divisors, whose sum is σ = 72554594. Its totient is φ = 72554592.

The previous prime is 72554551. The next prime is 72554621. The reversal of 72554593 is 39545527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56370064 + 16184529 = 7508^2 + 4023^2 .

It is a cyclic number.

It is not a de Polignac number, because 72554593 - 2¹⁷ = 72423521 is a prime.

It is not a weakly prime, because it can be changed into another prime (72554893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36277296 + 36277297.

It is an arithmetic number, because the mean of its divisors is an integer number (36277297).

Almost surely, 2^72554593 is an apocalyptic number.

It is an amenable number.

72554593 is a deficient number, since it is larger than the sum of its proper divisors (1).

72554593 is an equidigital number, since it uses as much as digits as its factorization.

72554593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 189000, while the sum is 40.

The square root of 72554593 is about 8517.8983910352. The cubic root of 72554593 is about 417.0821818332.

The spelling of 72554593 in words is "seventy-two million, five hundred fifty-four thousand, five hundred ninety-three".