72287325 has 36 divisors (see below), whose sum is σ = 141249888. Its totient is φ = 35047200.

The previous prime is 72287309. The next prime is 72287329. The reversal of 72287325 is 52378227.

It is a happy number.

It is not a de Polignac number, because 72287325 - 2⁴ = 72287309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72287325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72287329) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12129 + ... + 17078.

It is an arithmetic number, because the mean of its divisors is an integer number (3923608).

Almost surely, 2^72287325 is an apocalyptic number.

72287325 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

72287325 is a deficient number, since it is larger than the sum of its proper divisors (68962563).

72287325 is a wasteful number, since it uses less digits than its factorization.

72287325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29234 (or 29226 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 72287325 is about 8502.1953047434. The cubic root of 72287325 is about 416.5694190825.

The spelling of 72287325 in words is "seventy-two million, two hundred eighty-seven thousand, three hundred twenty-five".