545378650 has 24 divisors (see below), whose sum is σ = 1025810460. Its totient is φ = 215698560.

The previous prime is 545378627. The next prime is 545378653. The reversal of 545378650 is 56873545.

It can be written as a sum of positive squares in 6 ways, for example, as 143496441 + 401882209 = 11979^2 + 20047^2 .

It is a junction number, because it is equal to n+sod(n) for n = 545378597 and 545378606.

It is not an unprimeable number, because it can be changed into a prime (545378653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56829 + ... + 65728.

Almost surely, 2^545378650 is an apocalyptic number.

545378650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

545378650 is a deficient number, since it is larger than the sum of its proper divisors (480431810).

545378650 is a wasteful number, since it uses less digits than its factorization.

545378650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122658 (or 122653 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 43.

The square root of 545378650 is about 23353.3434437127. The cubic root of 545378650 is about 817.0200432843.

The spelling of 545378650 in words is "five hundred forty-five million, three hundred seventy-eight thousand, six hundred fifty".