72533807 has 4 divisors (see below), whose sum is σ = 72558696. Its totient is φ = 72508920.

The previous prime is 72533803. The next prime is 72533809. The reversal of 72533807 is 70833527.

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 72533807 - 2² = 72533803 is a prime.

It is a super-2 number, since 2×72533807² = 10522306315826498, which contains 22 as substring.

It is a Duffinian number.

It is a partition number, being equal to the number of ways a set of 92 identical objects can be partitioned into subset.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72533803) 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, 7388 + ... + 14129.

It is an arithmetic number, because the mean of its divisors is an integer number (18139674).

Almost surely, 2^72533807 is an apocalyptic number.

72533807 is a deficient number, since it is larger than the sum of its proper divisors (24889).

72533807 is a wasteful number, since it uses less digits than its factorization.

72533807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24888.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 72533807 is about 8516.6781669851. The cubic root of 72533807 is about 417.0423483878.

The spelling of 72533807 in words is "seventy-two million, five hundred thirty-three thousand, eight hundred seven".