551979671 has 2 divisors, whose sum is σ = 551979672. Its totient is φ = 551979670.

The previous prime is 551979643. The next prime is 551979677. The reversal of 551979671 is 176979155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 551979671 - 2⁶ = 551979607 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551979677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275989835 + 275989836.

It is an arithmetic number, because the mean of its divisors is an integer number (275989836).

Almost surely, 2^551979671 is an apocalyptic number.

551979671 is a deficient number, since it is larger than the sum of its proper divisors (1).

551979671 is an equidigital number, since it uses as much as digits as its factorization.

551979671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 595350, while the sum is 50.

The square root of 551979671 is about 23494.2476151078. The cubic root of 551979671 is about 820.3031156799.

The spelling of 551979671 in words is "five hundred fifty-one million, nine hundred seventy-nine thousand, six hundred seventy-one".