553431 has 4 divisors (see below), whose sum is σ = 737912. Its totient is φ = 368952.

The previous prime is 553417. The next prime is 553433. The reversal of 553431 is 134355.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 553431 - 2¹³ = 545239 is a prime.

It is a super-2 number, since 2×553431² = 612571743522, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 553398 and 553407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553433) 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, 92236 + ... + 92241.

It is an arithmetic number, because the mean of its divisors is an integer number (184478).

2⁵⁵³⁴³¹ is an apocalyptic number.

553431 is a deficient number, since it is larger than the sum of its proper divisors (184481).

553431 is a wasteful number, since it uses less digits than its factorization.

553431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184480.

The product of its digits is 900, while the sum is 21.

The square root of 553431 is about 743.9294321372. The cubic root of 553431 is about 82.1021431866.

Adding to 553431 its reverse (134355), we get a palindrome (687786).

It can be divided in two parts, 5534 and 31, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 553431 in words is "five hundred fifty-three thousand, four hundred thirty-one".