55113331 has 8 divisors (see below), whose sum is σ = 67831904. Its totient is φ = 43606080.

The previous prime is 55113299. The next prime is 55113341. The reversal of 55113331 is 13331155.

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

It is not a de Polignac number, because 55113331 - 2⁵ = 55113299 is a prime.

It is a super-2 number, since 2×55113331² = 6074958507831122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55113341) 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, 302730 + ... + 302911.

It is an arithmetic number, because the mean of its divisors is an integer number (8478988).

Almost surely, 2^55113331 is an apocalyptic number.

55113331 is a deficient number, since it is larger than the sum of its proper divisors (12718573).

55113331 is a wasteful number, since it uses less digits than its factorization.

55113331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605661.

The product of its digits is 675, while the sum is 22.

The square root of 55113331 is about 7423.8353295315. The cubic root of 55113331 is about 380.5562743881.

Adding to 55113331 its reverse (13331155), we get a palindrome (68444486).

The spelling of 55113331 in words is "fifty-five million, one hundred thirteen thousand, three hundred thirty-one".