9772577725 has 6 divisors (see below), whose sum is σ = 12117996410. Its totient is φ = 7818062160.

The previous prime is 9772577719. The next prime is 9772577729. The reversal of 9772577725 is 5277752779.

It can be written as a sum of positive squares in 3 ways, for example, as 1222061764 + 8550515961 = 34958^2 + 92469^2 .

It is not a de Polignac number, because 9772577725 - 2⁵ = 9772577693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9772577725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9772577729) 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, 195451530 + ... + 195451579.

Almost surely, 2^9772577725 is an apocalyptic number.

It is an amenable number.

9772577725 is a deficient number, since it is larger than the sum of its proper divisors (2345418685).

9772577725 is a wasteful number, since it uses less digits than its factorization.

9772577725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390903119 (or 390903114 counting only the distinct ones).

The product of its digits is 15126300, while the sum is 58.

The square root of 9772577725 is about 98856.3489362216. The cubic root of 9772577725 is about 2137.9770766904.

The spelling of 9772577725 in words is "nine billion, seven hundred seventy-two million, five hundred seventy-seven thousand, seven hundred twenty-five".