553205440 has 28 divisors (see below), whose sum is σ = 1317321216. Its totient is φ = 221282048.

The previous prime is 553205437. The next prime is 553205459. The reversal of 553205440 is 44502355.

It is a junction number, because it is equal to n+sod(n) for n = 553205399 and 553205408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864064 + ... + 864703.

Almost surely, 2^553205440 is an apocalyptic number.

It is an amenable number.

553205440 is an abundant number, since it is smaller than the sum of its proper divisors (764115776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

553205440 is a wasteful number, since it uses less digits than its factorization.

553205440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728784 (or 1728774 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 553205440 is about 23520.3197257180. The cubic root of 553205440 is about 820.9098764000.

Adding to 553205440 its reverse (44502355), we get a palindrome (597707795).

The spelling of 553205440 in words is "five hundred fifty-three million, two hundred five thousand, four hundred forty".