75358485225 has 27 divisors (see below), whose sum is σ = 134982795909. Its totient is φ = 40188996000.

The previous prime is 75358485203. The next prime is 75358485233. The reversal of 75358485225 is 52258485357.

It is a happy number.

The square root of 75358485225 is 274515.

It is a perfect power (a square), and thus also a powerful number.

75358485225 is a `hidden beast` number, since 7 + 5 + 3 + 584 + 8 + 52 + 2 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 39700961001 + 35657524224 = 199251^2 + 188832^2 .

It is not a de Polignac number, because 75358485225 - 2²¹ = 75356388073 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4108575 + ... + 4126875.

Almost surely, 2^75358485225 is an apocalyptic number.

75358485225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

75358485225 is the 274515-th square number.

75358485225 is the 137258-th centered octagonal number.

It is an amenable number.

75358485225 is a deficient number, since it is larger than the sum of its proper divisors (59624310684).

75358485225 is an frugal number, since it uses more digits than its factorization.

75358485225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36618 (or 18309 counting only the distinct ones).

The product of its digits is 13440000, while the sum is 54.

The spelling of 75358485225 in words is "seventy-five billion, three hundred fifty-eight million, four hundred eighty-five thousand, two hundred twenty-five".