545543851 has 2 divisors, whose sum is σ = 545543852. Its totient is φ = 545543850.

The previous prime is 545543837. The next prime is 545543861. The reversal of 545543851 is 158345545.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545543851 - 2¹¹ = 545541803 is a prime.

It is not a weakly prime, because it can be changed into another prime (545543861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272771925 + 272771926.

It is an arithmetic number, because the mean of its divisors is an integer number (272771926).

Almost surely, 2^545543851 is an apocalyptic number.

545543851 is a deficient number, since it is larger than the sum of its proper divisors (1).

545543851 is an equidigital number, since it uses as much as digits as its factorization.

545543851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 240000, while the sum is 40.

The square root of 545543851 is about 23356.8801640973. The cubic root of 545543851 is about 817.1025296463.

The spelling of 545543851 in words is "five hundred forty-five million, five hundred forty-three thousand, eight hundred fifty-one".