133225555 has 8 divisors (see below), whose sum is σ = 159956352. Its totient is φ = 106523328.

The previous prime is 133225553. The next prime is 133225597. The reversal of 133225555 is 555522331.

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

It is a cyclic number.

It is not a de Polignac number, because 133225555 - 2¹ = 133225553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133225553) 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, 4999 + ... + 17071.

It is an arithmetic number, because the mean of its divisors is an integer number (19994544).

Almost surely, 2^133225555 is an apocalyptic number.

133225555 is a deficient number, since it is larger than the sum of its proper divisors (26730797).

133225555 is a wasteful number, since it uses less digits than its factorization.

133225555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14285.

The product of its digits is 22500, while the sum is 31.

The square root of 133225555 is about 11542.3375015635. The cubic root of 133225555 is about 510.7352652334.

Adding to 133225555 its reverse (555522331), we get a palindrome (688747886).

The spelling of 133225555 in words is "one hundred thirty-three million, two hundred twenty-five thousand, five hundred fifty-five".