72568507 has 8 divisors (see below), whose sum is σ = 81305712. Its totient is φ = 64188000.

The previous prime is 72568499. The next prime is 72568523. The reversal of 72568507 is 70586527.

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 72568507 - 2³ = 72568499 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 72568507.

It is not an unprimeable number, because it can be changed into a prime (72568567) 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, 88744 + ... + 89557.

It is an arithmetic number, because the mean of its divisors is an integer number (10163214).

Almost surely, 2^72568507 is an apocalyptic number.

72568507 is a deficient number, since it is larger than the sum of its proper divisors (8737205).

72568507 is a wasteful number, since it uses less digits than its factorization.

72568507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178349.

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 72568507 is about 8518.7151026431. The cubic root of 72568507 is about 417.1088418065.

The spelling of 72568507 in words is "seventy-two million, five hundred sixty-eight thousand, five hundred seven".