1553522504123 has 4 divisors (see below), whose sum is σ = 1621066960848. Its totient is φ = 1485978047400.

The previous prime is 1553522504117. The next prime is 1553522504153. The reversal of 1553522504123 is 3214052253551.

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 1553522504123 - 2³⁰ = 1552448762299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1553522504113) 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, 33772228328 + ... + 33772228373.

It is an arithmetic number, because the mean of its divisors is an integer number (405266740212).

Almost surely, 2^{1553522504123} is an apocalyptic number.

1553522504123 is a deficient number, since it is larger than the sum of its proper divisors (67544456725).

1553522504123 is an equidigital number, since it uses as much as digits as its factorization.

1553522504123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67544456724.

The product of its (nonzero) digits is 180000, while the sum is 38.

Adding to 1553522504123 its reverse (3214052253551), we get a palindrome (4767574757674).

The spelling of 1553522504123 in words is "one trillion, five hundred fifty-three billion, five hundred twenty-two million, five hundred four thousand, one hundred twenty-three".