7225566628725 has 144 divisors (see below), whose sum is σ = 13672524902400. Its totient is φ = 3642510643200.

The previous prime is 7225566628697. The next prime is 7225566628729. The reversal of 7225566628725 is 5278266655227.

7225566628725 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7225566628725 - 2²¹ = 7225564531573 is a prime.

It is a super-2 number, since 2×7225566628725² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7225566628729) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 82393701 + ... + 82481349.

It is an arithmetic number, because the mean of its divisors is an integer number (94948089600).

Almost surely, 2^{7225566628725} is an apocalyptic number.

7225566628725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7225566628725 is a deficient number, since it is larger than the sum of its proper divisors (6446958273675).

7225566628725 is a wasteful number, since it uses less digits than its factorization.

7225566628725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87972 (or 87964 counting only the distinct ones).

The product of its digits is 169344000, while the sum is 63.

The spelling of 7225566628725 in words is "seven trillion, two hundred twenty-five billion, five hundred sixty-six million, six hundred twenty-eight thousand, seven hundred twenty-five".