66225045 has 32 divisors (see below), whose sum is σ = 109226880. Its totient is φ = 34242560.

The previous prime is 66225043. The next prime is 66225053. The reversal of 66225045 is 54052266.

It is not a de Polignac number, because 66225045 - 2¹ = 66225043 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66225041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157846 + ... + 158264.

It is an arithmetic number, because the mean of its divisors is an integer number (3413340).

Almost surely, 2^66225045 is an apocalyptic number.

It is an amenable number.

66225045 is a deficient number, since it is larger than the sum of its proper divisors (43001835).

66225045 is a wasteful number, since it uses less digits than its factorization.

66225045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 66225045 is about 8137.8771801988. The cubic root of 66225045 is about 404.5828046527.

The spelling of 66225045 in words is "sixty-six million, two hundred twenty-five thousand, forty-five".