550712531 has 4 divisors (see below), whose sum is σ = 550977000. Its totient is φ = 550448064.

The previous prime is 550712521. The next prime is 550712543. The reversal of 550712531 is 135217055.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 550712531 - 2¹⁰ = 550711507 is a prime.

It is a super-2 number, since 2×550712531² = 606568583600851922, 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 = 550712494 and 550712503.

It is not an unprimeable number, because it can be changed into a prime (550712521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129086 + ... + 133283.

It is an arithmetic number, because the mean of its divisors is an integer number (137744250).

Almost surely, 2^550712531 is an apocalyptic number.

550712531 is a deficient number, since it is larger than the sum of its proper divisors (264469).

550712531 is a wasteful number, since it uses less digits than its factorization.

550712531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264468.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 550712531 is about 23467.2650941689. The cubic root of 550712531 is about 819.6749311356.

Adding to 550712531 its reverse (135217055), we get a palindrome (685929586).

The spelling of 550712531 in words is "five hundred fifty million, seven hundred twelve thousand, five hundred thirty-one".