1553222113 has 8 divisors (see below), whose sum is σ = 1586822400. Its totient is φ = 1519644960.

The previous prime is 1553222101. The next prime is 1553222129. The reversal of 1553222113 is 3112223551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1553222113 - 2⁹ = 1553221601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1553222173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250693 + ... + 256813.

It is an arithmetic number, because the mean of its divisors is an integer number (198352800).

Almost surely, 2^1553222113 is an apocalyptic number.

It is an amenable number.

1553222113 is a deficient number, since it is larger than the sum of its proper divisors (33600287).

1553222113 is an equidigital number, since it uses as much as digits as its factorization.

1553222113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11567.

The product of its digits is 1800, while the sum is 25.

The square root of 1553222113 is about 39410.9390017543. The cubic root of 1553222113 is about 1158.0958934651.

Adding to 1553222113 its reverse (3112223551), we get a palindrome (4665445664).

The spelling of 1553222113 in words is "one billion, five hundred fifty-three million, two hundred twenty-two thousand, one hundred thirteen".