55453230 has 192 divisors, whose sum is σ = 177914880. Its totient is φ = 11708928.

The previous prime is 55453199. The next prime is 55453241. The reversal of 55453230 is 3235455.

55453230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55453194 and 55453203.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 623026 + ... + 623114.

It is an arithmetic number, because the mean of its divisors is an integer number (926640).

Almost surely, 2^55453230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55453230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88957440).

55453230 is an abundant number, since it is smaller than the sum of its proper divisors (122461650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55453230 is a wasteful number, since it uses less digits than its factorization.

55453230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 55453230 is about 7446.6925544164. The cubic root of 55453230 is about 381.3370031664.

Adding to 55453230 its reverse (3235455), we get a palindrome (58688685).

The spelling of 55453230 in words is "fifty-five million, four hundred fifty-three thousand, two hundred thirty".