545418225 has 192 divisors, whose sum is σ = 1205280000. Its totient is φ = 238694400.

The previous prime is 545418197. The next prime is 545418239. The reversal of 545418225 is 522814545.

545418225 is a `hidden beast` number, since 5 + 454 + 182 + 25 = 666.

It is not a de Polignac number, because 545418225 - 2⁸ = 545417969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 545418225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3660451 + ... + 3660599.

It is an arithmetic number, because the mean of its divisors is an integer number (6277500).

Almost surely, 2^545418225 is an apocalyptic number.

545418225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

545418225 is an abundant number, since it is smaller than the sum of its proper divisors (659861775).

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

545418225 is a wasteful number, since it uses less digits than its factorization.

545418225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 214 counting only the distinct ones).

The product of its digits is 64000, while the sum is 36.

The square root of 545418225 is about 23354.1907374244. The cubic root of 545418225 is about 817.0398049588.

The spelling of 545418225 in words is "five hundred forty-five million, four hundred eighteen thousand, two hundred twenty-five".