553140444 has 24 divisors (see below), whose sum is σ = 1293324928. Its totient is φ = 183999600.

The previous prime is 553140437. The next prime is 553140449. The reversal of 553140444 is 444041355.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553140449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41482 + ... + 53169.

Almost surely, 2^553140444 is an apocalyptic number.

It is an amenable number.

553140444 is an abundant number, since it is smaller than the sum of its proper divisors (740184484).

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

553140444 is a wasteful number, since it uses less digits than its factorization.

553140444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95145 (or 95143 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 553140444 is about 23518.9379862272. The cubic root of 553140444 is about 820.8777256267.

Adding to 553140444 its reverse (444041355), we get a palindrome (997181799).

The spelling of 553140444 in words is "five hundred fifty-three million, one hundred forty thousand, four hundred forty-four".