6547237225 has 9 divisors (see below), whose sum is σ = 8119075863. Its totient is φ = 5237466120.

The previous prime is 6547237219. The next prime is 6547237309. The reversal of 6547237225 is 5227327456.

The square root of 6547237225 is 80915.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2357005401 + 4190231824 = 48549^2 + 64732^2 .

It is a de Polignac number, because none of the positive numbers 2^k-6547237225 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 396484 + ... + 412666.

Almost surely, 2^6547237225 is an apocalyptic number.

6547237225 is the 80915-th square number.

6547237225 is the 40458-th centered octagonal number.

It is an amenable number.

6547237225 is a deficient number, since it is larger than the sum of its proper divisors (1571838638).

6547237225 is an frugal number, since it uses more digits than its factorization.

6547237225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32376 (or 16188 counting only the distinct ones).

The product of its digits is 705600, while the sum is 43.

The cubic root of 6547237225 is about 1870.7655291730.

The spelling of 6547237225 in words is "six billion, five hundred forty-seven million, two hundred thirty-seven thousand, two hundred twenty-five".