553220623 has 4 divisors (see below), whose sum is σ = 553327600. Its totient is φ = 553113648.

The previous prime is 553220621. The next prime is 553220653. The reversal of 553220623 is 326022355.

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

It is a cyclic number.

It is not a de Polignac number, because 553220623 - 2¹ = 553220621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 553220591 and 553220600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553220621) 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, 45315 + ... + 56212.

It is an arithmetic number, because the mean of its divisors is an integer number (138331900).

Almost surely, 2^553220623 is an apocalyptic number.

553220623 is a deficient number, since it is larger than the sum of its proper divisors (106977).

553220623 is a wasteful number, since it uses less digits than its factorization.

553220623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106976.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 553220623 is about 23520.6424869730. The cubic root of 553220623 is about 820.9173864253.

Adding to 553220623 its reverse (326022355), we get a palindrome (879242978).

The spelling of 553220623 in words is "five hundred fifty-three million, two hundred twenty thousand, six hundred twenty-three".