66225453 has 8 divisors (see below), whose sum is σ = 100915008. Its totient is φ = 37843104.

The previous prime is 66225427. The next prime is 66225493. The reversal of 66225453 is 35452266.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66225453 - 2¹⁴ = 66209069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66225493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1576776 + ... + 1576817.

It is an arithmetic number, because the mean of its divisors is an integer number (12614376).

Almost surely, 2^66225453 is an apocalyptic number.

It is an amenable number.

66225453 is a deficient number, since it is larger than the sum of its proper divisors (34689555).

66225453 is a wasteful number, since it uses less digits than its factorization.

66225453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3153603.

The product of its digits is 43200, while the sum is 33.

The square root of 66225453 is about 8137.9022481227. The cubic root of 66225453 is about 404.5836355038.

The spelling of 66225453 in words is "sixty-six million, two hundred twenty-five thousand, four hundred fifty-three".