72656255 has 8 divisors (see below), whose sum is σ = 99642912. Its totient is φ = 49821408.

The previous prime is 72656251. The next prime is 72656257. The reversal of 72656255 is 55265627.

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

It is not a de Polignac number, because 72656255 - 2² = 72656251 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 (72656251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1037912 + ... + 1037981.

It is an arithmetic number, because the mean of its divisors is an integer number (12455364).

Almost surely, 2^72656255 is an apocalyptic number.

72656255 is a deficient number, since it is larger than the sum of its proper divisors (26986657).

72656255 is a wasteful number, since it uses less digits than its factorization.

72656255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075905.

The product of its digits is 126000, while the sum is 38.

The square root of 72656255 is about 8523.8638539104. The cubic root of 72656255 is about 417.2768932380.

The spelling of 72656255 in words is "seventy-two million, six hundred fifty-six thousand, two hundred fifty-five".