545897856 has 256 divisors, whose sum is σ = 1762560000. Its totient is φ = 146399232.

The previous prime is 545897831. The next prime is 545897899. The reversal of 545897856 is 658798545.

It is a junction number, because it is equal to n+sod(n) for n = 545897796 and 545897805.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3663670 + ... + 3663818.

It is an arithmetic number, because the mean of its divisors is an integer number (6885000).

Almost surely, 2^545897856 is an apocalyptic number.

545897856 is a gapful number since it is divisible by the number (56) 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 545897856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (881280000).

545897856 is an abundant number, since it is smaller than the sum of its proper divisors (1216662144).

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

545897856 is a wasteful number, since it uses less digits than its factorization.

545897856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 237 counting only the distinct ones).

The product of its digits is 12096000, while the sum is 57.

The square root of 545897856 is about 23364.4571090364. The cubic root of 545897856 is about 817.2792315045.

The spelling of 545897856 in words is "five hundred forty-five million, eight hundred ninety-seven thousand, eight hundred fifty-six".