551540622 has 16 divisors (see below), whose sum is σ = 1167968592. Its totient is φ = 173032320.

The previous prime is 551540609. The next prime is 551540641. The reversal of 551540622 is 226045155.

It is a super-3 number, since 3×551540622³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 551540622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2703529 + ... + 2703732.

It is an arithmetic number, because the mean of its divisors is an integer number (72998037).

Almost surely, 2^551540622 is an apocalyptic number.

551540622 is an abundant number, since it is smaller than the sum of its proper divisors (616427970).

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

551540622 is a wasteful number, since it uses less digits than its factorization.

551540622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5407283.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 551540622 is about 23484.9020010729. The cubic root of 551540622 is about 820.0855661255.

Adding to 551540622 its reverse (226045155), we get a palindrome (777585777).

The spelling of 551540622 in words is "five hundred fifty-one million, five hundred forty thousand, six hundred twenty-two".