1553324343 has 16 divisors (see below), whose sum is σ = 2219559936. Its totient is φ = 963753120.

The previous prime is 1553324321. The next prime is 1553324369. The reversal of 1553324343 is 3434233551.

It is not a de Polignac number, because 1553324343 - 2¹² = 1553320247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553324393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301663 + ... + 306768.

It is an arithmetic number, because the mean of its divisors is an integer number (138722496).

Almost surely, 2^1553324343 is an apocalyptic number.

1553324343 is a deficient number, since it is larger than the sum of its proper divisors (666235593).

1553324343 is a wasteful number, since it uses less digits than its factorization.

1553324343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608494.

The product of its digits is 64800, while the sum is 33.

The square root of 1553324343 is about 39412.2359553477. The cubic root of 1553324343 is about 1158.1213007663.

Adding to 1553324343 its reverse (3434233551), we get a palindrome (4987557894).

The spelling of 1553324343 in words is "one billion, five hundred fifty-three million, three hundred twenty-four thousand, three hundred forty-three".