66263025 has 24 divisors (see below), whose sum is σ = 116001504. Its totient is φ = 33260800.

The previous prime is 66263017. The next prime is 66263053. The reversal of 66263025 is 52036266.

It is not a de Polignac number, because 66263025 - 2³ = 66263017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66262983 and 66263001.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 24711 + ... + 27260.

It is an arithmetic number, because the mean of its divisors is an integer number (4833396).

Almost surely, 2^66263025 is an apocalyptic number.

It is an amenable number.

66263025 is a deficient number, since it is larger than the sum of its proper divisors (49738479).

66263025 is a wasteful number, since it uses less digits than its factorization.

66263025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52001 (or 51996 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 66263025 is about 8140.2103781168. The cubic root of 66263025 is about 404.6601324894.

The spelling of 66263025 in words is "sixty-six million, two hundred sixty-three thousand, twenty-five".