72507003 has 4 divisors (see below), whose sum is σ = 96676008. Its totient is φ = 48338000.

The previous prime is 72506981. The next prime is 72507011. The reversal of 72507003 is 30070527.

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 72507003 - 2¹⁴ = 72490619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72507203) 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, 12084498 + ... + 12084503.

It is an arithmetic number, because the mean of its divisors is an integer number (24169002).

Almost surely, 2^72507003 is an apocalyptic number.

72507003 is a deficient number, since it is larger than the sum of its proper divisors (24169005).

72507003 is a wasteful number, since it uses less digits than its factorization.

72507003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24169004.

The product of its (nonzero) digits is 1470, while the sum is 24.

The square root of 72507003 is about 8515.1044033529. The cubic root of 72507003 is about 416.9909710563.

The spelling of 72507003 in words is "seventy-two million, five hundred seven thousand, three".