75553325685 has 12 divisors (see below), whose sum is σ = 130959097932. Its totient is φ = 40295107008.

The previous prime is 75553325663. The next prime is 75553325689. The reversal of 75553325685 is 58652335557.

75553325685 is a `hidden beast` number, since 7 + 5 + 5 + 533 + 25 + 6 + 85 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 52227789156 + 23325536529 = 228534^2 + 152727^2 .

It is not a de Polignac number, because 75553325685 - 2⁶ = 75553325621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75553325689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 839481352 + ... + 839481441.

It is an arithmetic number, because the mean of its divisors is an integer number (10913258161).

Almost surely, 2^75553325685 is an apocalyptic number.

It is an amenable number.

75553325685 is a deficient number, since it is larger than the sum of its proper divisors (55405772247).

75553325685 is a wasteful number, since it uses less digits than its factorization.

75553325685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678962804 (or 1678962801 counting only the distinct ones).

The product of its digits is 18900000, while the sum is 54.

The spelling of 75553325685 in words is "seventy-five billion, five hundred fifty-three million, three hundred twenty-five thousand, six hundred eighty-five".