72502851 has 8 divisors (see below), whose sum is σ = 96829120. Its totient is φ = 48255912.

The previous prime is 72502847. The next prime is 72502861. The reversal of 72502851 is 15820527.

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

It is not a de Polignac number, because 72502851 - 2² = 72502847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72502861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17665 + ... + 21378.

It is an arithmetic number, because the mean of its divisors is an integer number (12103640).

Almost surely, 2^72502851 is an apocalyptic number.

72502851 is a deficient number, since it is larger than the sum of its proper divisors (24326269).

72502851 is a wasteful number, since it uses less digits than its factorization.

72502851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39665.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 72502851 is about 8514.8605978019. The cubic root of 72502851 is about 416.9830114593.

It can be divided in two parts, 7250 and 2851, that added together give a palindrome (10101).

The spelling of 72502851 in words is "seventy-two million, five hundred two thousand, eight hundred fifty-one".