72500105 has 8 divisors (see below), whose sum is σ = 91579200. Its totient is φ = 54947376.

The previous prime is 72500101. The next prime is 72500111. The reversal of 72500105 is 50100527.

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

It is a cyclic number.

It is not a de Polignac number, because 72500105 - 2² = 72500101 is a prime.

It is a super-2 number, since 2×72500105² = 10512530450022050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72500101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381485 + ... + 381674.

It is an arithmetic number, because the mean of its divisors is an integer number (11447400).

Almost surely, 2^72500105 is an apocalyptic number.

It is an amenable number.

72500105 is a deficient number, since it is larger than the sum of its proper divisors (19079095).

72500105 is a wasteful number, since it uses less digits than its factorization.

72500105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763183.

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 72500105 is about 8514.6993487733. The cubic root of 72500105 is about 416.9777470695.

The spelling of 72500105 in words is "seventy-two million, five hundred thousand, one hundred five".