72955505 has 8 divisors (see below), whose sum is σ = 100053312. Its totient is φ = 50026608.

The previous prime is 72955481. The next prime is 72955513. The reversal of 72955505 is 50555927.

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 72955505 - 2⁸ = 72955249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 1042187 + ... + 1042256.

It is an arithmetic number, because the mean of its divisors is an integer number (12506664).

Almost surely, 2^72955505 is an apocalyptic number.

It is an amenable number.

72955505 is a deficient number, since it is larger than the sum of its proper divisors (27097807).

72955505 is a wasteful number, since it uses less digits than its factorization.

72955505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2084455.

The product of its (nonzero) digits is 78750, while the sum is 38.

The square root of 72955505 is about 8541.3994754958. The cubic root of 72955505 is about 417.8489892763.

The spelling of 72955505 in words is "seventy-two million, nine hundred fifty-five thousand, five hundred five".