55730241 has 16 divisors (see below), whose sum is σ = 94358400. Its totient is φ = 31845744.

The previous prime is 55730239. The next prime is 55730261. The reversal of 55730241 is 14203755.

It is a happy number.

It is not a de Polignac number, because 55730241 - 2¹ = 55730239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (55730221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147246 + ... + 147623.

It is an arithmetic number, because the mean of its divisors is an integer number (5897400).

Almost surely, 2^55730241 is an apocalyptic number.

It is an amenable number.

55730241 is a deficient number, since it is larger than the sum of its proper divisors (38628159).

55730241 is a wasteful number, since it uses less digits than its factorization.

55730241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294885 (or 294879 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 55730241 is about 7465.2689837674. The cubic root of 55730241 is about 381.9709255761.

Adding to 55730241 its reverse (14203755), we get a palindrome (69933996).

The spelling of 55730241 in words is "fifty-five million, seven hundred thirty thousand, two hundred forty-one".