66253132 has 12 divisors (see below), whose sum is σ = 126483336. Its totient is φ = 30115040.

The previous prime is 66253123. The next prime is 66253141. The reversal of 66253132 is 23135266.

It is an interprime number because it is at equal distance from previous prime (66253123) and next prime (66253141).

It is a self number, because there is not a number n which added to its sum of digits gives 66253132.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 752833 + ... + 752920.

It is an arithmetic number, because the mean of its divisors is an integer number (10540278).

Almost surely, 2^66253132 is an apocalyptic number.

It is an amenable number.

66253132 is a deficient number, since it is larger than the sum of its proper divisors (60230204).

66253132 is a wasteful number, since it uses less digits than its factorization.

66253132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505768 (or 1505766 counting only the distinct ones).

The product of its digits is 6480, while the sum is 28.

The square root of 66253132 is about 8139.6026930066. The cubic root of 66253132 is about 404.6399930429.

Adding to 66253132 its reverse (23135266), we get a palindrome (89388398).

The spelling of 66253132 in words is "sixty-six million, two hundred fifty-three thousand, one hundred thirty-two".