55203730 has 8 divisors (see below), whose sum is σ = 99366732. Its totient is φ = 22081488.

The previous prime is 55203727. The next prime is 55203737. The reversal of 55203730 is 3730255.

55203730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 55190041 + 13689 = 7429^2 + 117^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 55203695 and 55203704.

It is not an unprimeable number, because it can be changed into a prime (55203737) 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, 2760177 + ... + 2760196.

Almost surely, 2^55203730 is an apocalyptic number.

55203730 is a deficient number, since it is larger than the sum of its proper divisors (44163002).

55203730 is a wasteful number, since it uses less digits than its factorization.

55203730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5520380.

The product of its (nonzero) digits is 3150, while the sum is 25.

The square root of 55203730 is about 7429.9212647241. The cubic root of 55203730 is about 380.7642283987.

Adding to 55203730 its reverse (3730255), we get a palindrome (58933985).

The spelling of 55203730 in words is "fifty-five million, two hundred three thousand, seven hundred thirty".