72250017 has 16 divisors (see below), whose sum is σ = 116572032. Its totient is φ = 38856960.

The previous prime is 72250001. The next prime is 72250033. The reversal of 72250017 is 71005227.

It is an interprime number because it is at equal distance from previous prime (72250001) and next prime (72250033).

It is not a de Polignac number, because 72250017 - 2⁴ = 72250001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72250067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100834 + ... + 101547.

It is an arithmetic number, because the mean of its divisors is an integer number (7285752).

Almost surely, 2^72250017 is an apocalyptic number.

It is an amenable number.

72250017 is a deficient number, since it is larger than the sum of its proper divisors (44322015).

72250017 is a wasteful number, since it uses less digits than its factorization.

72250017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202408.

The product of its (nonzero) digits is 980, while the sum is 24.

The square root of 72250017 is about 8500.0009999999. Note that the first 3 decimals coincide. The cubic root of 72250017 is about 416.4977419417.

The spelling of 72250017 in words is "seventy-two million, two hundred fifty thousand, seventeen".