7280231825 has 6 divisors (see below), whose sum is σ = 9027487494. Its totient is φ = 5824185440.

The previous prime is 7280231821. The next prime is 7280231839. The reversal of 7280231825 is 5281320827.

It can be written as a sum of positive squares in 3 ways, for example, as 1327800721 + 5952431104 = 36439^2 + 77152^2 .

It is not a de Polignac number, because 7280231825 - 2² = 7280231821 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7280231821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 145604612 + ... + 145604661.

It is an arithmetic number, because the mean of its divisors is an integer number (1504581249).

Almost surely, 2^7280231825 is an apocalyptic number.

It is an amenable number.

7280231825 is a deficient number, since it is larger than the sum of its proper divisors (1747255669).

7280231825 is a wasteful number, since it uses less digits than its factorization.

7280231825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291209283 (or 291209278 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 7280231825 is about 85324.2745354451. The cubic root of 7280231825 is about 1938.1247888589.

The spelling of 7280231825 in words is "seven billion, two hundred eighty million, two hundred thirty-one thousand, eight hundred twenty-five".