72502006 has 4 divisors (see below), whose sum is σ = 108753012. Its totient is φ = 36251002.

The previous prime is 72501997. The next prime is 72502007. The reversal of 72502006 is 60020527.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72502007) by changing a digit.

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 as a sum of consecutive naturals, namely, 18125500 + ... + 18125503.

It is an arithmetic number, because the mean of its divisors is an integer number (27188253).

Almost surely, 2^72502006 is an apocalyptic number.

72502006 is a deficient number, since it is larger than the sum of its proper divisors (36251006).

72502006 is a wasteful number, since it uses less digits than its factorization.

72502006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36251005.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 72502006 is about 8514.8109785244. The cubic root of 72502006 is about 416.9813915138.

The spelling of 72502006 in words is "seventy-two million, five hundred two thousand, six".