1553320004 has 12 divisors (see below), whose sum is σ = 2718606828. Its totient is φ = 776575200.

The previous prime is 1553319997. The next prime is 1553320009. The reversal of 1553320004 is 4000233551.

It can be written as a sum of positive squares in 2 ways, for example, as 951599104 + 601720900 = 30848^2 + 24530^2 .

It is not an unprimeable number, because it can be changed into a prime (1553320009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39014 + ... + 68034.

It is an arithmetic number, because the mean of its divisors is an integer number (226550569).

Almost surely, 2^1553320004 is an apocalyptic number.

It is an amenable number.

1553320004 is a deficient number, since it is larger than the sum of its proper divisors (1165286824).

1553320004 is a wasteful number, since it uses less digits than its factorization.

1553320004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42406 (or 42404 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 1553320004 is about 39412.1809089525. The cubic root of 1553320004 is about 1158.1202224139.

Adding to 1553320004 its reverse (4000233551), we get a palindrome (5553553555).

The spelling of 1553320004 in words is "one billion, five hundred fifty-three million, three hundred twenty thousand, four".