551671 has 2 divisors, whose sum is σ = 551672. Its totient is φ = 551670.

The previous prime is 551659. The next prime is 551689. The reversal of 551671 is 176155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 551671 - 2⁷ = 551543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275835 + 275836.

It is an arithmetic number, because the mean of its divisors is an integer number (275836).

2⁵⁵¹⁶⁷¹ is an apocalyptic number.

551671 is a deficient number, since it is larger than the sum of its proper divisors (1).

551671 is an equidigital number, since it uses as much as digits as its factorization.

551671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1050, while the sum is 25.

The square root of 551671 is about 742.7455822824. The cubic root of 551671 is about 82.0150180703.

The spelling of 551671 in words is "five hundred fifty-one thousand, six hundred seventy-one".