7228772325 has 72 divisors (see below), whose sum is σ = 13332245888. Its totient is φ = 3741344640.

The previous prime is 7228772323. The next prime is 7228772461. The reversal of 7228772325 is 5232778227.

It is not a de Polignac number, because 7228772325 - 2¹ = 7228772323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7228772323) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4053384 + ... + 4055166.

Almost surely, 2^7228772325 is an apocalyptic number.

7228772325 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7228772325 is a deficient number, since it is larger than the sum of its proper divisors (6103473563).

7228772325 is a wasteful number, since it uses less digits than its factorization.

7228772325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323 (or 2315 counting only the distinct ones).

The product of its digits is 658560, while the sum is 45.

The square root of 7228772325 is about 85022.1872513287. The cubic root of 7228772325 is about 1933.5475148332.

The spelling of 7228772325 in words is "seven billion, two hundred twenty-eight million, seven hundred seventy-two thousand, three hundred twenty-five".