66525059 has 2 divisors, whose sum is σ = 66525060. Its totient is φ = 66525058.

The previous prime is 66525047. The next prime is 66525071. The reversal of 66525059 is 95052566.

It is a balanced prime because it is at equal distance from previous prime (66525047) and next prime (66525071).

It is a cyclic number.

It is not a de Polignac number, because 66525059 - 2⁸ = 66524803 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (66525079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33262529 + 33262530.

It is an arithmetic number, because the mean of its divisors is an integer number (33262530).

Almost surely, 2^66525059 is an apocalyptic number.

66525059 is a deficient number, since it is larger than the sum of its proper divisors (1).

66525059 is an equidigital number, since it uses as much as digits as its factorization.

66525059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81000, while the sum is 38.

The square root of 66525059 is about 8156.2895363026. The cubic root of 66525059 is about 405.1928340458.

It can be divided in two parts, 6652 and 5059, that added together give a palindrome (11711).

The spelling of 66525059 in words is "sixty-six million, five hundred twenty-five thousand, fifty-nine".