545330021450 has 12 divisors (see below), whose sum is σ = 1014313839990. Its totient is φ = 218132008560.

The previous prime is 545330021449. The next prime is 545330021477. The reversal of 545330021450 is 54120033545.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 431371790521 + 113958230929 = 656789^2 + 337577^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5453300165 + ... + 5453300264.

Almost surely, 2^545330021450 is an apocalyptic number.

545330021450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

545330021450 is a deficient number, since it is larger than the sum of its proper divisors (468983818540).

545330021450 is a wasteful number, since it uses less digits than its factorization.

545330021450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10906600441 (or 10906600436 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 545330021450 its reverse (54120033545), we get a palindrome (599450054995).

The spelling of 545330021450 in words is "five hundred forty-five billion, three hundred thirty million, twenty-one thousand, four hundred fifty".