66525214 has 32 divisors (see below), whose sum is σ = 118736640. Its totient is φ = 27361152.

The previous prime is 66525211. The next prime is 66525227. The reversal of 66525214 is 41252566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66525211) 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, 34582 + ... + 36454.

It is an arithmetic number, because the mean of its divisors is an integer number (3710520).

Almost surely, 2^66525214 is an apocalyptic number.

66525214 is a deficient number, since it is larger than the sum of its proper divisors (52211426).

66525214 is a wasteful number, since it uses less digits than its factorization.

66525214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984.

The product of its digits is 14400, while the sum is 31.

The square root of 66525214 is about 8156.2990381668. The cubic root of 66525214 is about 405.1931487385.

The spelling of 66525214 in words is "sixty-six million, five hundred twenty-five thousand, two hundred fourteen".