553898644 has 12 divisors (see below), whose sum is σ = 1043886004. Its totient is φ = 255645504.

The previous prime is 553898629. The next prime is 553898647. The reversal of 553898644 is 446898355.

It can be written as a sum of positive squares in 2 ways, for example, as 29030544 + 524868100 = 5388^2 + 22910^2 .

It is a Harshad number since it is a multiple of its sum of digits (52), and also a Moran number because the ratio is a prime number: 10651897 = 553898644 / (5 + 5 + 3 + 8 + 9 + 8 + 6 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 553898591 and 553898600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553898647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5325897 + ... + 5326000.

Almost surely, 2^553898644 is an apocalyptic number.

It is an amenable number.

553898644 is a deficient number, since it is larger than the sum of its proper divisors (489987360).

553898644 is a wasteful number, since it uses less digits than its factorization.

553898644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10651914 (or 10651912 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 52.

The square root of 553898644 is about 23535.0513914884. The cubic root of 553898644 is about 821.2526185621.

The spelling of 553898644 in words is "five hundred fifty-three million, eight hundred ninety-eight thousand, six hundred forty-four".