551670491 has 8 divisors (see below), whose sum is σ = 580956480. Its totient is φ = 522409608.

The previous prime is 551670487. The next prime is 551670499. The reversal of 551670491 is 194076155.

551670491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 551670491 - 2² = 551670487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551670499) 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, 53540 + ... + 63006.

It is an arithmetic number, because the mean of its divisors is an integer number (72619560).

Almost surely, 2^551670491 is an apocalyptic number.

551670491 is a deficient number, since it is larger than the sum of its proper divisors (29285989).

551670491 is a wasteful number, since it uses less digits than its factorization.

551670491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12553.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 551670491 is about 23487.6667849320. Note that the first 3 decimals coincide. The cubic root of 551670491 is about 820.1499284649.

The spelling of 551670491 in words is "five hundred fifty-one million, six hundred seventy thousand, four hundred ninety-one".