72585241 has 4 divisors (see below), whose sum is σ = 72953892. Its totient is φ = 72216592.

The previous prime is 72585239. The next prime is 72585277. The reversal of 72585241 is 14258527.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72182016 + 403225 = 8496^2 + 635^2 .

It is a cyclic number.

It is not a de Polignac number, because 72585241 - 2¹ = 72585239 is a prime.

It is a super-2 number, since 2×72585241² = 10537234422056162, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72585197 and 72585206.

It is not an unprimeable number, because it can be changed into a prime (72585221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184030 + ... + 184423.

It is an arithmetic number, because the mean of its divisors is an integer number (18238473).

Almost surely, 2^72585241 is an apocalyptic number.

It is an amenable number.

72585241 is a deficient number, since it is larger than the sum of its proper divisors (368651).

72585241 is a wasteful number, since it uses less digits than its factorization.

72585241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368650.

The product of its digits is 22400, while the sum is 34.

The square root of 72585241 is about 8519.6972364046. The cubic root of 72585241 is about 417.1409005384.

The spelling of 72585241 in words is "seventy-two million, five hundred eighty-five thousand, two hundred forty-one".