1553022223 has 4 divisors (see below), whose sum is σ = 1553127480. Its totient is φ = 1552916968.

The previous prime is 1553022197. The next prime is 1553022227. The reversal of 1553022223 is 3222203551.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3222203551 = 7 ⋅460314793.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1553022223 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 (1553022227) 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, 26008 + ... + 61501.

It is an arithmetic number, because the mean of its divisors is an integer number (388281870).

Almost surely, 2^1553022223 is an apocalyptic number.

1553022223 is a deficient number, since it is larger than the sum of its proper divisors (105257).

1553022223 is an equidigital number, since it uses as much as digits as its factorization.

1553022223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105256.

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

The square root of 1553022223 is about 39408.4029491173. The cubic root of 1553022223 is about 1158.0462114273.

Adding to 1553022223 its reverse (3222203551), we get a palindrome (4775225774).

The spelling of 1553022223 in words is "one billion, five hundred fifty-three million, twenty-two thousand, two hundred twenty-three".