7637225 has 6 divisors (see below), whose sum is σ = 9470190. Its totient is φ = 6109760.

The previous prime is 7637213. The next prime is 7637243. The reversal of 7637225 is 5227367.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1605289 + 6031936 = 1267^2 + 2456^2 .

It is not a de Polignac number, because 7637225 - 2¹⁶ = 7571689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7637191 and 7637200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 152720 + ... + 152769.

It is an arithmetic number, because the mean of its divisors is an integer number (1578365).

Almost surely, 2^7637225 is an apocalyptic number.

It is an amenable number.

7637225 is a deficient number, since it is larger than the sum of its proper divisors (1832965).

7637225 is a wasteful number, since it uses less digits than its factorization.

7637225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305499 (or 305494 counting only the distinct ones).

The product of its digits is 17640, while the sum is 32.

The square root of 7637225 is about 2763.5529667441. The cubic root of 7637225 is about 196.9299913571.

The spelling of 7637225 in words is "seven million, six hundred thirty-seven thousand, two hundred twenty-five".