1553345404 has 12 divisors (see below), whose sum is σ = 2927458744. Its totient is φ = 716928624.

The previous prime is 1553345383. The next prime is 1553345407. The reversal of 1553345404 is 4045433551.

It is a self number, because there is not a number n which added to its sum of digits gives 1553345404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1553345407) 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 3 ways as a sum of consecutive naturals, for example, 14935962 + ... + 14936065.

Almost surely, 2^1553345404 is an apocalyptic number.

It is an amenable number.

1553345404 is a deficient number, since it is larger than the sum of its proper divisors (1374113340).

1553345404 is a wasteful number, since it uses less digits than its factorization.

1553345404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29872044 (or 29872042 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

The square root of 1553345404 is about 39412.5031430383. The cubic root of 1553345404 is about 1158.1265349344.

Adding to 1553345404 its reverse (4045433551), we get a palindrome (5598778955).

The spelling of 1553345404 in words is "one billion, five hundred fifty-three million, three hundred forty-five thousand, four hundred four".