66252026 has 16 divisors (see below), whose sum is σ = 106669224. Its totient is φ = 30749184.

The previous prime is 66252001. The next prime is 66252041. The reversal of 66252026 is 62025266.

It can be written as a sum of positive squares in 4 ways, for example, as 46226401 + 20025625 = 6799^2 + 4475^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 66252026.

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, 10865 + ... + 15828.

Almost surely, 2^66252026 is an apocalyptic number.

66252026 is a deficient number, since it is larger than the sum of its proper divisors (40417198).

66252026 is a wasteful number, since it uses less digits than its factorization.

66252026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26785.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 66252026 is about 8139.5347532890. The cubic root of 66252026 is about 404.6377414043.

The spelling of 66252026 in words is "sixty-six million, two hundred fifty-two thousand, twenty-six".