66525832 has 8 divisors (see below), whose sum is σ = 124735950. Its totient is φ = 33262912.

The previous prime is 66525829. The next prime is 66525839. The reversal of 66525832 is 23852566.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 49928356 + 16597476 = 7066^2 + 4074^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 66525791 and 66525800.

It is not an unprimeable number, because it can be changed into a prime (66525839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4157857 + ... + 4157872.

Almost surely, 2^66525832 is an apocalyptic number.

It is an amenable number.

66525832 is a deficient number, since it is larger than the sum of its proper divisors (58210118).

66525832 is a wasteful number, since it uses less digits than its factorization.

66525832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8315735 (or 8315731 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The square root of 66525832 is about 8156.3369229085. The cubic root of 66525832 is about 405.1944034436.

The spelling of 66525832 in words is "sixty-six million, five hundred twenty-five thousand, eight hundred thirty-two".