72260755 has 16 divisors (see below), whose sum is σ = 99267264. Its totient is φ = 49466880.

The previous prime is 72260723. The next prime is 72260767. The reversal of 72260755 is 55706227.

It is a happy number.

It is not a de Polignac number, because 72260755 - 2⁵ = 72260723 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72260755.

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 15 ways as a sum of consecutive naturals, for example, 25279 + ... + 27991.

It is an arithmetic number, because the mean of its divisors is an integer number (6204204).

Almost surely, 2^72260755 is an apocalyptic number.

72260755 is a deficient number, since it is larger than the sum of its proper divisors (27006509).

72260755 is a wasteful number, since it uses less digits than its factorization.

72260755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3486.

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 72260755 is about 8500.6326235169. The cubic root of 72260755 is about 416.5183746068.

The spelling of 72260755 in words is "seventy-two million, two hundred sixty thousand, seven hundred fifty-five".