66525752 has 64 divisors (see below), whose sum is σ = 136857600. Its totient is φ = 30222720.

The previous prime is 66525751. The next prime is 66525757. The reversal of 66525752 is 25752566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66525751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 610274 + ... + 610382.

It is an arithmetic number, because the mean of its divisors is an integer number (2138400).

Almost surely, 2^66525752 is an apocalyptic number.

66525752 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

66525752 is an abundant number, since it is smaller than the sum of its proper divisors (70331848).

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

66525752 is a wasteful number, since it uses less digits than its factorization.

66525752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276 (or 272 counting only the distinct ones).

The product of its digits is 126000, while the sum is 38.

The square root of 66525752 is about 8156.3320187447. The cubic root of 66525752 is about 405.1942410227.

The spelling of 66525752 in words is "sixty-six million, five hundred twenty-five thousand, seven hundred fifty-two".