66007250 has 16 divisors (see below), whose sum is σ = 123566040. Its totient is φ = 26402800.

The previous prime is 66007247. The next prime is 66007267. The reversal of 66007250 is 5270066.

It can be written as a sum of positive squares in 4 ways, for example, as 5058001 + 60949249 = 2249^2 + 7807^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131765 + ... + 132264.

Almost surely, 2^66007250 is an apocalyptic number.

66007250 is a deficient number, since it is larger than the sum of its proper divisors (57558790).

66007250 is a wasteful number, since it uses less digits than its factorization.

66007250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264046 (or 264036 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 66007250 is about 8124.4845990377. The cubic root of 66007250 is about 404.1387989902.

The spelling of 66007250 in words is "sixty-six million, seven thousand, two hundred fifty".