551354660 has 12 divisors (see below), whose sum is σ = 1157844828. Its totient is φ = 220541856.

The previous prime is 551354653. The next prime is 551354669. The reversal of 551354660 is 66453155.

It can be written as a sum of positive squares in 2 ways, for example, as 174451264 + 376903396 = 13208^2 + 19414^2 .

It is a super-4 number, since 4×551354660⁴ (a number of 36 digits) contains 4444 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 551354660.

It is not an unprimeable number, because it can be changed into a prime (551354669) 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, 13783847 + ... + 13783886.

It is an arithmetic number, because the mean of its divisors is an integer number (96487069).

Almost surely, 2^551354660 is an apocalyptic number.

It is an amenable number.

551354660 is an abundant number, since it is smaller than the sum of its proper divisors (606490168).

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

551354660 is a wasteful number, since it uses less digits than its factorization.

551354660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27567742 (or 27567740 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 551354660 is about 23480.9424853433. The cubic root of 551354660 is about 819.9933868196.

It can be divided in two parts, 55135 and 4660, that added together give a palindrome (59795).

The spelling of 551354660 in words is "five hundred fifty-one million, three hundred fifty-four thousand, six hundred sixty".