55831611 has 8 divisors (see below), whose sum is σ = 81209664. Its totient is φ = 33837320.

The previous prime is 55831561. The next prime is 55831663. The reversal of 55831611 is 11613855.

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

It is not a de Polignac number, because 55831611 - 2⁶ = 55831547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55831681) 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, 845901 + ... + 845966.

It is an arithmetic number, because the mean of its divisors is an integer number (10151208).

Almost surely, 2^55831611 is an apocalyptic number.

55831611 is a deficient number, since it is larger than the sum of its proper divisors (25378053).

55831611 is a wasteful number, since it uses less digits than its factorization.

55831611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691881.

The product of its digits is 3600, while the sum is 30.

The square root of 55831611 is about 7472.0553397308. The cubic root of 55831611 is about 382.2023794452.

The spelling of 55831611 in words is "fifty-five million, eight hundred thirty-one thousand, six hundred eleven".