551316740 has 48 divisors (see below), whose sum is σ = 1251066432. Its totient is φ = 202870656.

The previous prime is 551316737. The next prime is 551316743. The reversal of 551316740 is 47613155.

It is an interprime number because it is at equal distance from previous prime (551316737) and next prime (551316743).

It is a junction number, because it is equal to n+sod(n) for n = 551316697 and 551316706.

It is not an unprimeable number, because it can be changed into a prime (551316743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76367 + ... + 83273.

It is an arithmetic number, because the mean of its divisors is an integer number (26063884).

Almost surely, 2^551316740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551316740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (625533216).

551316740 is an abundant number, since it is smaller than the sum of its proper divisors (699749692).

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

551316740 is a wasteful number, since it uses less digits than its factorization.

551316740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7236 (or 7234 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 551316740 is about 23480.1350081297. The cubic root of 551316740 is about 819.9745877510.

Adding to 551316740 its reverse (47613155), we get a palindrome (598929895).

The spelling of 551316740 in words is "five hundred fifty-one million, three hundred sixteen thousand, seven hundred forty".