72535611 has 4 divisors (see below), whose sum is σ = 96714152. Its totient is φ = 48357072.

The previous prime is 72535579. The next prime is 72535627. The reversal of 72535611 is 11653527.

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

It is not a de Polignac number, because 72535611 - 2⁵ = 72535579 is a prime.

It is a super-2 number, since 2×72535611² = 10522829726286642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72531611) 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, 12089266 + ... + 12089271.

It is an arithmetic number, because the mean of its divisors is an integer number (24178538).

Almost surely, 2^72535611 is an apocalyptic number.

72535611 is a deficient number, since it is larger than the sum of its proper divisors (24178541).

72535611 is a wasteful number, since it uses less digits than its factorization.

72535611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24178540.

The product of its digits is 6300, while the sum is 30.

The square root of 72535611 is about 8516.7840761640. The cubic root of 72535611 is about 417.0458058016.

The spelling of 72535611 in words is "seventy-two million, five hundred thirty-five thousand, six hundred eleven".