72652505 has 8 divisors (see below), whose sum is σ = 87393600. Its totient is φ = 57981616.

The previous prime is 72652501. The next prime is 72652519. The reversal of 72652505 is 50525627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72652505 - 2² = 72652501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72652501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15245 + ... + 19434.

It is an arithmetic number, because the mean of its divisors is an integer number (10924200).

Almost surely, 2^72652505 is an apocalyptic number.

It is an amenable number.

72652505 is a deficient number, since it is larger than the sum of its proper divisors (14741095).

72652505 is a wasteful number, since it uses less digits than its factorization.

72652505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35103.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 72652505 is about 8523.6438804070. The cubic root of 72652505 is about 417.2697141576.

The spelling of 72652505 in words is "seventy-two million, six hundred fifty-two thousand, five hundred five".