545218256 has 30 divisors (see below), whose sum is σ = 1161127506. Its totient is φ = 247825600.

The previous prime is 545218249. The next prime is 545218291. The reversal of 545218256 is 652812545.

It can be written as a sum of positive squares in only one way, i.e., 357966400 + 187251856 = 18920^2 + 13684^2 .

It is a congruent number.

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, 138875 + ... + 142746.

Almost surely, 2^545218256 is an apocalyptic number.

It is an amenable number.

545218256 is an abundant number, since it is smaller than the sum of its proper divisors (615909250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545218256 is a wasteful number, since it uses less digits than its factorization.

545218256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281651 (or 281634 counting only the distinct ones).

The product of its digits is 96000, while the sum is 38.

The square root of 545218256 is about 23349.9091218788. The cubic root of 545218256 is about 816.9399411622.

The spelling of 545218256 in words is "five hundred forty-five million, two hundred eighteen thousand, two hundred fifty-six".