72888925 has 6 divisors (see below), whose sum is σ = 90382298. Its totient is φ = 58311120.

The previous prime is 72888923. The next prime is 72888929. The reversal of 72888925 is 52988827.

It can be written as a sum of positive squares in 3 ways, for example, as 196249 + 72692676 = 443^2 + 8526^2 .

It is not a de Polignac number, because 72888925 - 2¹ = 72888923 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72888923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1457754 + ... + 1457803.

Almost surely, 2^72888925 is an apocalyptic number.

It is an amenable number.

72888925 is a deficient number, since it is larger than the sum of its proper divisors (17493373).

72888925 is a wasteful number, since it uses less digits than its factorization.

72888925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2915567 (or 2915562 counting only the distinct ones).

The product of its digits is 645120, while the sum is 49.

The square root of 72888925 is about 8537.5010980966. The cubic root of 72888925 is about 417.7218393874.

The spelling of 72888925 in words is "seventy-two million, eight hundred eighty-eight thousand, nine hundred twenty-five".