7125272217 has 32 divisors (see below), whose sum is σ = 12099859200. Its totient is φ = 4059465984.

The previous prime is 7125272197. The next prime is 7125272227. The reversal of 7125272217 is 7122725217.

It is a happy number.

It is not a de Polignac number, because 7125272217 - 2¹² = 7125268121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7125272227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7759 + ... + 119627.

It is an arithmetic number, because the mean of its divisors is an integer number (378120600).

Almost surely, 2^7125272217 is an apocalyptic number.

It is an amenable number.

7125272217 is a deficient number, since it is larger than the sum of its proper divisors (4974586983).

7125272217 is a wasteful number, since it uses less digits than its factorization.

7125272217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112222 (or 112216 counting only the distinct ones).

The product of its digits is 27440, while the sum is 36.

The square root of 7125272217 is about 84411.3275396140. The cubic root of 7125272217 is about 1924.2750712312.

The spelling of 7125272217 in words is "seven billion, one hundred twenty-five million, two hundred seventy-two thousand, two hundred seventeen".