66252526 has 4 divisors (see below), whose sum is σ = 99378792. Its totient is φ = 33126262.

The previous prime is 66252521. The next prime is 66252547. The reversal of 66252526 is 62525266.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 66252491 and 66252500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66252521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16563130 + ... + 16563133.

It is an arithmetic number, because the mean of its divisors is an integer number (24844698).

Almost surely, 2^66252526 is an apocalyptic number.

66252526 is a deficient number, since it is larger than the sum of its proper divisors (33126266).

66252526 is a wasteful number, since it uses less digits than its factorization.

66252526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33126265.

The product of its digits is 43200, while the sum is 34.

The square root of 66252526 is about 8139.5654675173. The cubic root of 66252526 is about 404.6387593272.

The spelling of 66252526 in words is "sixty-six million, two hundred fifty-two thousand, five hundred twenty-six".