1553055323 has 4 divisors (see below), whose sum is σ = 1554947808. Its totient is φ = 1551162840.

The previous prime is 1553055293. The next prime is 1553055331. The reversal of 1553055323 is 3235503551.

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 1553055323 - 2²⁰ = 1552006747 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1553055323.

It is not an unprimeable number, because it can be changed into a prime (1553055223) 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, 945011 + ... + 946652.

It is an arithmetic number, because the mean of its divisors is an integer number (388736952).

Almost surely, 2^1553055323 is an apocalyptic number.

1553055323 is a deficient number, since it is larger than the sum of its proper divisors (1892485).

1553055323 is an equidigital number, since it uses as much as digits as its factorization.

1553055323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892484.

The product of its (nonzero) digits is 33750, while the sum is 32.

The square root of 1553055323 is about 39408.8229080748. The cubic root of 1553055323 is about 1158.0544386239.

Adding to 1553055323 its reverse (3235503551), we get a palindrome (4788558874).

The spelling of 1553055323 in words is "one billion, five hundred fifty-three million, fifty-five thousand, three hundred twenty-three".