7389028225 has 6 divisors (see below), whose sum is σ = 9162395030. Its totient is φ = 5911222560.

The previous prime is 7389028211. The next prime is 7389028243. The reversal of 7389028225 is 5228209837.

7389028225 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 146337409 + 7242690816 = 12097^2 + 85104^2 .

It is not a de Polignac number, because 7389028225 - 2⁵ = 7389028193 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 147780540 + ... + 147780589.

Almost surely, 2^7389028225 is an apocalyptic number.

It is an amenable number.

7389028225 is a deficient number, since it is larger than the sum of its proper divisors (1773366805).

7389028225 is a wasteful number, since it uses less digits than its factorization.

7389028225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295561139 (or 295561134 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 7389028225 is about 85959.4568677583. The cubic root of 7389028225 is about 1947.7315918888.

The spelling of 7389028225 in words is "seven billion, three hundred eighty-nine million, twenty-eight thousand, two hundred twenty-five".