72500125 has 8 divisors (see below), whose sum is σ = 90480312. Its totient is φ = 58000000.

The previous prime is 72500111. The next prime is 72500149. The reversal of 72500125 is 52100527.

It can be written as a sum of positive squares in 4 ways, for example, as 962361 + 71537764 = 981^2 + 8458^2 .

It is not a de Polignac number, because 72500125 - 2⁷ = 72499997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72500096 and 72500105.

It is a congruent number.

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, 289876 + ... + 290125.

It is an arithmetic number, because the mean of its divisors is an integer number (11310039).

Almost surely, 2^72500125 is an apocalyptic number.

It is an amenable number.

72500125 is a deficient number, since it is larger than the sum of its proper divisors (17980187).

72500125 is an equidigital number, since it uses as much as digits as its factorization.

72500125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580016 (or 580006 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 72500125 is about 8514.7005232128. The cubic root of 72500125 is about 416.9777854123.

The spelling of 72500125 in words is "seventy-two million, five hundred thousand, one hundred twenty-five".