72080500 has 24 divisors (see below), whose sum is σ = 157424904. Its totient is φ = 28832000.

The previous prime is 72080483. The next prime is 72080507. The reversal of 72080500 is 508027.

It can be written as a sum of positive squares in 4 ways, for example, as 5560164 + 66520336 = 2358^2 + 8156^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72080507) 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, 71581 + ... + 72580.

It is an arithmetic number, because the mean of its divisors is an integer number (6559371).

Almost surely, 2^72080500 is an apocalyptic number.

It is an amenable number.

72080500 is an abundant number, since it is smaller than the sum of its proper divisors (85344404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72080500 is a wasteful number, since it uses less digits than its factorization.

72080500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144180 (or 144168 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 72080500 is about 8490.0235570933. The cubic root of 72080500 is about 416.1717501489.

Adding to 72080500 its reverse (508027), we get a palindrome (72588527).

The spelling of 72080500 in words is "seventy-two million, eighty thousand, five hundred".