545805312 has 176 divisors, whose sum is σ = 1595677440. Its totient is φ = 164855808.

The previous prime is 545805307. The next prime is 545805347. The reversal of 545805312 is 213508545.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3154858 + ... + 3155030.

Almost surely, 2^545805312 is an apocalyptic number.

545805312 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545805312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (797838720).

545805312 is an abundant number, since it is smaller than the sum of its proper divisors (1049872128).

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

545805312 is a wasteful number, since it uses less digits than its factorization.

545805312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 545805312 is about 23362.4765810477. The cubic root of 545805312 is about 817.2330454749.

The spelling of 545805312 in words is "five hundred forty-five million, eight hundred five thousand, three hundred twelve".