545421515293 has 2 divisors, whose sum is σ = 545421515294. Its totient is φ = 545421515292.

The previous prime is 545421515291. The next prime is 545421515347. The reversal of 545421515293 is 392515124545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320307325849 + 225114189444 = 565957^2 + 474462^2 .

It is a cyclic number.

It is not a de Polignac number, because 545421515293 - 2¹ = 545421515291 is a prime.

Together with 545421515291, 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 (545421515291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272710757646 + 272710757647.

It is an arithmetic number, because the mean of its divisors is an integer number (272710757647).

Almost surely, 2^545421515293 is an apocalyptic number.

It is an amenable number.

545421515293 is a deficient number, since it is larger than the sum of its proper divisors (1).

545421515293 is an equidigital number, since it uses as much as digits as its factorization.

545421515293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080000, while the sum is 46.

The spelling of 545421515293 in words is "five hundred forty-five billion, four hundred twenty-one million, five hundred fifteen thousand, two hundred ninety-three".