72722503 has 8 divisors (see below), whose sum is σ = 85044608. Its totient is φ = 60883704.

The previous prime is 72722491. The next prime is 72722521. The reversal of 72722503 is 30522727.

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

It is not a de Polignac number, because 72722503 - 2⁵ = 72722471 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 (72722543) 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, 120501 + ... + 121102.

It is an arithmetic number, because the mean of its divisors is an integer number (10630576).

Almost surely, 2^72722503 is an apocalyptic number.

72722503 is a deficient number, since it is larger than the sum of its proper divisors (12322105).

72722503 is a wasteful number, since it uses less digits than its factorization.

72722503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241653.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 72722503 is about 8527.7489995895. The cubic root of 72722503 is about 417.4036791195.

The spelling of 72722503 in words is "seventy-two million, seven hundred twenty-two thousand, five hundred three".