547820542231 has 2 divisors, whose sum is σ = 547820542232. Its totient is φ = 547820542230.

The previous prime is 547820542229. The next prime is 547820542253. The reversal of 547820542231 is 132245028745.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 547820542231 - 2¹ = 547820542229 is a prime.

It is a super-2 number, since 2×547820542231² (a number of 24 digits) contains 22 as substring.

Together with 547820542229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (547820542271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273910271115 + 273910271116.

It is an arithmetic number, because the mean of its divisors is an integer number (273910271116).

Almost surely, 2^547820542231 is an apocalyptic number.

547820542231 is a deficient number, since it is larger than the sum of its proper divisors (1).

547820542231 is an equidigital number, since it uses as much as digits as its factorization.

547820542231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 537600, while the sum is 43.

The spelling of 547820542231 in words is "five hundred forty-seven billion, eight hundred twenty million, five hundred forty-two thousand, two hundred thirty-one".