553440431 has 8 divisors (see below), whose sum is σ = 563026800. Its totient is φ = 543923712.

The previous prime is 553440409. The next prime is 553440449. The reversal of 553440431 is 134044355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 553440431 - 2⁶ = 553440367 is a prime.

It is a super-2 number, since 2×553440431² = 612592621330931522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 553440394 and 553440403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553440131) 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 7 ways as a sum of consecutive naturals, for example, 1256 + ... + 33293.

It is an arithmetic number, because the mean of its divisors is an integer number (70378350).

Almost surely, 2^553440431 is an apocalyptic number.

553440431 is a deficient number, since it is larger than the sum of its proper divisors (9586369).

553440431 is a wasteful number, since it uses less digits than its factorization.

553440431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34825.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 553440431 is about 23525.3146843990. The cubic root of 553440431 is about 821.0260955059.

Adding to 553440431 its reverse (134044355), we get a palindrome (687484786).

The spelling of 553440431 in words is "five hundred fifty-three million, four hundred forty thousand, four hundred thirty-one".