7216545275 has 6 divisors (see below), whose sum is σ = 8948516172. Its totient is φ = 5773236200.

The previous prime is 7216545253. The next prime is 7216545289. The reversal of 7216545275 is 5725456127.

It is not a de Polignac number, because 7216545275 - 2¹² = 7216541179 is a prime.

It is a super-2 number, since 2×7216545275² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144330881 + ... + 144330930.

It is an arithmetic number, because the mean of its divisors is an integer number (1491419362).

Almost surely, 2^7216545275 is an apocalyptic number.

7216545275 is a deficient number, since it is larger than the sum of its proper divisors (1731970897).

7216545275 is a wasteful number, since it uses less digits than its factorization.

7216545275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288661821 (or 288661816 counting only the distinct ones).

The product of its digits is 588000, while the sum is 44.

The square root of 7216545275 is about 84950.2517653715. The cubic root of 7216545275 is about 1932.4567383697.

The spelling of 7216545275 in words is "seven billion, two hundred sixteen million, five hundred forty-five thousand, two hundred seventy-five".