766553532 has 12 divisors (see below), whose sum is σ = 1788624936. Its totient is φ = 255517840.

The previous prime is 766553521. The next prime is 766553533. The reversal of 766553532 is 235355667.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766553533) 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 3 ways as a sum of consecutive naturals, for example, 31939719 + ... + 31939742.

It is an arithmetic number, because the mean of its divisors is an integer number (149052078).

Almost surely, 2^766553532 is an apocalyptic number.

It is an amenable number.

766553532 is an abundant number, since it is smaller than the sum of its proper divisors (1022071404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

766553532 is a wasteful number, since it uses less digits than its factorization.

766553532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63879468 (or 63879466 counting only the distinct ones).

The product of its digits is 567000, while the sum is 42.

The square root of 766553532 is about 27686.7031623485. The cubic root of 766553532 is about 915.1961047619.

The spelling of 766553532 in words is "seven hundred sixty-six million, five hundred fifty-three thousand, five hundred thirty-two".