550140631 has 8 divisors (see below), whose sum is σ = 556920000. Its totient is φ = 543402720.

The previous prime is 550140571. The next prime is 550140653. The reversal of 550140631 is 136041055.

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 550140631 - 2⁹ = 550140119 is a prime.

It is a super-2 number, since 2×550140631² = 605309427754156322, 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 = 550140596 and 550140605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550140431) 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, 16770 + ... + 37168.

It is an arithmetic number, because the mean of its divisors is an integer number (69615000).

Almost surely, 2^550140631 is an apocalyptic number.

550140631 is a deficient number, since it is larger than the sum of its proper divisors (6779369).

550140631 is a wasteful number, since it uses less digits than its factorization.

550140631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20729.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 550140631 is about 23455.0768704773. The cubic root of 550140631 is about 819.3910961464.

Adding to 550140631 its reverse (136041055), we get a palindrome (686181686).

The spelling of 550140631 in words is "five hundred fifty million, one hundred forty thousand, six hundred thirty-one".