55230961 has 4 divisors (see below), whose sum is σ = 55253232. Its totient is φ = 55208692.

The previous prime is 55230953. The next prime is 55231009. The reversal of 55230961 is 16903255.

55230961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55230961 - 2³ = 55230953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55230911) 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 3 ways as a sum of consecutive naturals, for example, 6871 + ... + 12556.

It is an arithmetic number, because the mean of its divisors is an integer number (13813308).

Almost surely, 2^55230961 is an apocalyptic number.

It is an amenable number.

55230961 is a deficient number, since it is larger than the sum of its proper divisors (22271).

55230961 is a wasteful number, since it uses less digits than its factorization.

55230961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22270.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 55230961 is about 7431.7535615762. The cubic root of 55230961 is about 380.8268261391.

It can be divided in two parts, 552 and 30961, that added together give a palindrome (31513).

The spelling of 55230961 in words is "fifty-five million, two hundred thirty thousand, nine hundred sixty-one".