72411503 has 4 divisors (see below), whose sum is σ = 72714720. Its totient is φ = 72108288.

The previous prime is 72411497. The next prime is 72411511. The reversal of 72411503 is 30511427.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72411503 - 2⁶ = 72411439 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 (72411203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151250 + ... + 151727.

It is an arithmetic number, because the mean of its divisors is an integer number (18178680).

Almost surely, 2^72411503 is an apocalyptic number.

72411503 is a deficient number, since it is larger than the sum of its proper divisors (303217).

72411503 is a wasteful number, since it uses less digits than its factorization.

72411503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303216.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 72411503 is about 8509.4948733753. The cubic root of 72411503 is about 416.8078157170.

The spelling of 72411503 in words is "seventy-two million, four hundred eleven thousand, five hundred three".