72364225 has 12 divisors (see below), whose sum is σ = 89838000. Its totient is φ = 57822800.

The previous prime is 72364211. The next prime is 72364249. The reversal of 72364225 is 52246327.

It is a de Polignac number, because none of the positive numbers 2^k-72364225 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36510 + ... + 38440.

It is an arithmetic number, because the mean of its divisors is an integer number (7486500).

Almost surely, 2^72364225 is an apocalyptic number.

It is an amenable number.

72364225 is a deficient number, since it is larger than the sum of its proper divisors (17473775).

72364225 is a wasteful number, since it uses less digits than its factorization.

72364225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3440 (or 3435 counting only the distinct ones).

The product of its digits is 20160, while the sum is 31.

The square root of 72364225 is about 8506.7164640653. The cubic root of 72364225 is about 416.7170836770.

The spelling of 72364225 in words is "seventy-two million, three hundred sixty-four thousand, two hundred twenty-five".