55601333 has 4 divisors (see below), whose sum is σ = 55684140. Its totient is φ = 55518528.

The previous prime is 55601309. The next prime is 55601347. The reversal of 55601333 is 33310655.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31561924 + 24039409 = 5618^2 + 4903^2 .

It is a cyclic number.

It is not a de Polignac number, because 55601333 - 2¹⁰ = 55600309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55601363) 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, 40388 + ... + 41741.

It is an arithmetic number, because the mean of its divisors is an integer number (13921035).

Almost surely, 2^55601333 is an apocalyptic number.

It is an amenable number.

55601333 is a deficient number, since it is larger than the sum of its proper divisors (82807).

55601333 is an equidigital number, since it uses as much as digits as its factorization.

55601333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82806.

The product of its (nonzero) digits is 4050, while the sum is 26.

The square root of 55601333 is about 7456.6301369989. The cubic root of 55601333 is about 381.6761895969.

Adding to 55601333 its reverse (33310655), we get a palindrome (88911988).

The spelling of 55601333 in words is "fifty-five million, six hundred one thousand, three hundred thirty-three".