72500012 has 24 divisors (see below), whose sum is σ = 137415600. Its totient is φ = 33270336.

The previous prime is 72499997. The next prime is 72500027. The reversal of 72500012 is 21000527.

It is an interprime number because it is at equal distance from previous prime (72499997) and next prime (72500027).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5414 + ... + 13202.

It is an arithmetic number, because the mean of its divisors is an integer number (5725650).

Almost surely, 2^72500012 is an apocalyptic number.

It is an amenable number.

72500012 is a deficient number, since it is larger than the sum of its proper divisors (64915588).

72500012 is a wasteful number, since it uses less digits than its factorization.

72500012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7985 (or 7983 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 72500012 is about 8514.6938876274. The cubic root of 72500012 is about 416.9775687758.

Adding to 72500012 its reverse (21000527), we get a palindrome (93500539).

The spelling of 72500012 in words is "seventy-two million, five hundred thousand, twelve".