553138440 has 64 divisors (see below), whose sum is σ = 1661212800. Its totient is φ = 147343872.

The previous prime is 553138433. The next prime is 553138451. The reversal of 553138440 is 44831355.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 144876 + ... + 148644.

It is an arithmetic number, because the mean of its divisors is an integer number (25956450).

Almost surely, 2^553138440 is an apocalyptic number.

It is an amenable number.

553138440 is an abundant number, since it is smaller than the sum of its proper divisors (1108074360).

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

553138440 is a wasteful number, since it uses less digits than its factorization.

553138440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5006 (or 5002 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 553138440 is about 23518.8953822241. The cubic root of 553138440 is about 820.8767342926.

Adding to 553138440 its reverse (44831355), we get a palindrome (597969795).

The spelling of 553138440 in words is "five hundred fifty-three million, one hundred thirty-eight thousand, four hundred forty".