550612640 has 48 divisors (see below), whose sum is σ = 1357388928. Its totient is φ = 210667776.

The previous prime is 550612639. The next prime is 550612649. The reversal of 550612640 is 46216055.

It is not an unprimeable number, because it can be changed into a prime (550612649) 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, 71132 + ... + 78491.

It is an arithmetic number, because the mean of its divisors is an integer number (28278936).

Almost surely, 2^550612640 is an apocalyptic number.

It is an amenable number.

550612640 is an abundant number, since it is smaller than the sum of its proper divisors (806776288).

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

550612640 is a wasteful number, since it uses less digits than its factorization.

550612640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149661 (or 149653 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 550612640 is about 23465.1366925488. The cubic root of 550612640 is about 819.6253692227.

Adding to 550612640 its reverse (46216055), we get a palindrome (596828695).

The spelling of 550612640 in words is "five hundred fifty million, six hundred twelve thousand, six hundred forty".