66053265 has 16 divisors (see below), whose sum is σ = 106068096. Its totient is φ = 35100800.

The previous prime is 66053261. The next prime is 66053287. The reversal of 66053265 is 56235066.

It is not a de Polignac number, because 66053265 - 2² = 66053261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66053261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3621 + ... + 12050.

It is an arithmetic number, because the mean of its divisors is an integer number (6629256).

Almost surely, 2^66053265 is an apocalyptic number.

It is an amenable number.

66053265 is a deficient number, since it is larger than the sum of its proper divisors (40014831).

66053265 is a wasteful number, since it uses less digits than its factorization.

66053265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15960.

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 66053265 is about 8127.3159776152. The cubic root of 66053265 is about 404.2326883089.

It can be divided in two parts, 6605 and 3265, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 66053265 in words is "sixty-six million, fifty-three thousand, two hundred sixty-five".