55310245 has 4 divisors (see below), whose sum is σ = 66372300. Its totient is φ = 44248192.

The previous prime is 55310219. The next prime is 55310249. The reversal of 55310245 is 54201355.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32251041 + 23059204 = 5679^2 + 4802^2 .

It is a cyclic number.

It is not a de Polignac number, because 55310245 - 2¹³ = 55302053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55310249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5531020 + ... + 5531029.

It is an arithmetic number, because the mean of its divisors is an integer number (16593075).

Almost surely, 2^55310245 is an apocalyptic number.

It is an amenable number.

55310245 is a deficient number, since it is larger than the sum of its proper divisors (11062055).

55310245 is a wasteful number, since it uses less digits than its factorization.

55310245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11062054.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 55310245 is about 7437.0857867850. The cubic root of 55310245 is about 381.0089645477.

It can be divided in two parts, 55310 and 245, that added together give a palindrome (55555).

The spelling of 55310245 in words is "fifty-five million, three hundred ten thousand, two hundred forty-five".