551316 has 12 divisors (see below), whose sum is σ = 1286432. Its totient is φ = 183768.

The previous prime is 551311. The next prime is 551321. The reversal of 551316 is 613155.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (551311) and next prime (551321).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 551292 and 551301.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 551316.

It is not an unprimeable number, because it can be changed into a prime (551311) by changing a digit.

551316 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22960 + ... + 22983.

2⁵⁵¹³¹⁶ is an apocalyptic number.

It is an amenable number.

551316 is an abundant number, since it is smaller than the sum of its proper divisors (735116).

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

551316 is a wasteful number, since it uses less digits than its factorization.

551316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45950 (or 45948 counting only the distinct ones).

The product of its digits is 450, while the sum is 21.

The square root of 551316 is about 742.5065656275. The cubic root of 551316 is about 81.9974220883.

The spelling of 551316 in words is "five hundred fifty-one thousand, three hundred sixteen".