72533165 has 16 divisors (see below), whose sum is σ = 92884800. Its totient is φ = 54214272.

The previous prime is 72533161. The next prime is 72533179. The reversal of 72533165 is 56133527.

It is a cyclic number.

It is not a de Polignac number, because 72533165 - 2² = 72533161 is a prime.

It is a super-2 number, since 2×72533165² = 10522120049834450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72533161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1706 + ... + 12164.

It is an arithmetic number, because the mean of its divisors is an integer number (5805300).

Almost surely, 2^72533165 is an apocalyptic number.

It is an amenable number.

72533165 is a deficient number, since it is larger than the sum of its proper divisors (20351635).

72533165 is a wasteful number, since it uses less digits than its factorization.

72533165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10556.

The product of its digits is 18900, while the sum is 32.

The square root of 72533165 is about 8516.6404761502. The cubic root of 72533165 is about 417.0411179639.

The spelling of 72533165 in words is "seventy-two million, five hundred thirty-three thousand, one hundred sixty-five".