55031361 has 24 divisors (see below), whose sum is σ = 93117024. Its totient is φ = 28586880.

The previous prime is 55031311. The next prime is 55031371. The reversal of 55031361 is 16313055.

55031361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55031361 - 2¹⁰ = 55030337 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55031311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15400 + ... + 18633.

It is an arithmetic number, because the mean of its divisors is an integer number (3879876).

Almost surely, 2^55031361 is an apocalyptic number.

It is an amenable number.

55031361 is a deficient number, since it is larger than the sum of its proper divisors (38085663).

55031361 is a wasteful number, since it uses less digits than its factorization.

55031361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34061 (or 34054 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 55031361 is about 7418.3125439685. The cubic root of 55031361 is about 380.3675137920.

The spelling of 55031361 in words is "fifty-five million, thirty-one thousand, three hundred sixty-one".