72533107 has 4 divisors (see below), whose sum is σ = 72557496. Its totient is φ = 72508720.

The previous prime is 72533093. The next prime is 72533113. The reversal of 72533107 is 70133527.

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

It is a cyclic number.

It is not a de Polignac number, because 72533107 - 2²³ = 64144499 is a prime.

It is a super-2 number, since 2×72533107² = 10522103222146898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72533137) 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, 6994 + ... + 13927.

It is an arithmetic number, because the mean of its divisors is an integer number (18139374).

Almost surely, 2^72533107 is an apocalyptic number.

72533107 is a deficient number, since it is larger than the sum of its proper divisors (24389).

72533107 is a wasteful number, since it uses less digits than its factorization.

72533107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24388.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 72533107 is about 8516.6370710510. The cubic root of 72533107 is about 417.0410068038.

The spelling of 72533107 in words is "seventy-two million, five hundred thirty-three thousand, one hundred seven".