66207252 has 12 divisors (see below), whose sum is σ = 154483616. Its totient is φ = 22069080.

The previous prime is 66207247. The next prime is 66207257. The reversal of 66207252 is 25270266.

It is an interprime number because it is at equal distance from previous prime (66207247) and next prime (66207257).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66207257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2758624 + ... + 2758647.

Almost surely, 2^66207252 is an apocalyptic number.

It is an amenable number.

66207252 is an abundant number, since it is smaller than the sum of its proper divisors (88276364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66207252 is a wasteful number, since it uses less digits than its factorization.

66207252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5517278 (or 5517276 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 66207252 is about 8136.7838855410. The cubic root of 66207252 is about 404.5465676740.

The spelling of 66207252 in words is "sixty-six million, two hundred seven thousand, two hundred fifty-two".