55260223 has 4 divisors (see below), whose sum is σ = 56038608. Its totient is φ = 54481840.

The previous prime is 55260211. The next prime is 55260239. The reversal of 55260223 is 32206255.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55260223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55260253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 389086 + ... + 389227.

It is an arithmetic number, because the mean of its divisors is an integer number (14009652).

Almost surely, 2^55260223 is an apocalyptic number.

55260223 is a deficient number, since it is larger than the sum of its proper divisors (778385).

55260223 is an equidigital number, since it uses as much as digits as its factorization.

55260223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778384.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 55260223 is about 7433.7220152492. The cubic root of 55260223 is about 380.8940697463.

Adding to 55260223 its reverse (32206255), we get a palindrome (87466478).

The spelling of 55260223 in words is "fifty-five million, two hundred sixty thousand, two hundred twenty-three".