72059581 has 8 divisors (see below), whose sum is σ = 78750144. Its totient is φ = 65392320.

The previous prime is 72059579. The next prime is 72059597. The reversal of 72059581 is 18595027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72059581 - 2¹ = 72059579 is a prime.

It is a super-2 number, since 2×72059581² = 10385166427791122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72059581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72053581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1000 + ... + 12046.

It is an arithmetic number, because the mean of its divisors is an integer number (9843768).

Almost surely, 2^72059581 is an apocalyptic number.

It is an amenable number.

72059581 is a deficient number, since it is larger than the sum of its proper divisors (6690563).

72059581 is a wasteful number, since it uses less digits than its factorization.

72059581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11651.

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 72059581 is about 8488.7914923150. The cubic root of 72059581 is about 416.1314861885.

The spelling of 72059581 in words is "seventy-two million, fifty-nine thousand, five hundred eighty-one".