545439825 has 180 divisors, whose sum is σ = 1231528320. Its totient is φ = 237504960.

The previous prime is 545439787. The next prime is 545439889. The reversal of 545439825 is 528934545.

It is not a de Polignac number, because 545439825 - 2¹⁹ = 544915537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 2282056 + ... + 2282294.

It is an arithmetic number, because the mean of its divisors is an integer number (6841824).

Almost surely, 2^545439825 is an apocalyptic number.

It is an amenable number.

545439825 is an abundant number, since it is smaller than the sum of its proper divisors (686088495).

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

545439825 is a wasteful number, since it uses less digits than its factorization.

545439825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 277 counting only the distinct ones).

The product of its digits is 864000, while the sum is 45.

The square root of 545439825 is about 23354.6531766156. The cubic root of 545439825 is about 817.0505904601.

The spelling of 545439825 in words is "five hundred forty-five million, four hundred thirty-nine thousand, eight hundred twenty-five".