1553345311 has 8 divisors (see below), whose sum is σ = 1818550944. Its totient is φ = 1298964480.

The previous prime is 1553345309. The next prime is 1553345317. The reversal of 1553345311 is 1135433551.

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 1553345311 - 2¹ = 1553345309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553345317) 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 7 ways as a sum of consecutive naturals, for example, 2705890 + ... + 2706463.

It is an arithmetic number, because the mean of its divisors is an integer number (227318868).

Almost surely, 2^1553345311 is an apocalyptic number.

1553345311 is a deficient number, since it is larger than the sum of its proper divisors (265205633).

1553345311 is an equidigital number, since it uses as much as digits as its factorization.

1553345311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5412401.

The product of its digits is 13500, while the sum is 31.

The square root of 1553345311 is about 39412.5019632096. The cubic root of 1553345311 is about 1158.1265118218.

Adding to 1553345311 its reverse (1135433551), we get a palindrome (2688778862).

The spelling of 1553345311 in words is "one billion, five hundred fifty-three million, three hundred forty-five thousand, three hundred eleven".