545515425 has 192 divisors, whose sum is σ = 1259919360. Its totient is φ = 225296640.

The previous prime is 545515423. The next prime is 545515429. The reversal of 545515425 is 524515545.

545515425 is a `hidden beast` number, since 54 + 551 + 54 + 2 + 5 = 666.

It is not a de Polignac number, because 545515425 - 2¹ = 545515423 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 545515425.

It is not an unprimeable number, because it can be changed into a prime (545515423) by changing a digit.

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, 5098222 + ... + 5098328.

It is an arithmetic number, because the mean of its divisors is an integer number (6562080).

Almost surely, 2^545515425 is an apocalyptic number.

It is an amenable number.

545515425 is an abundant number, since it is smaller than the sum of its proper divisors (714403935).

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

545515425 is a wasteful number, since it uses less digits than its factorization.

545515425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 218 counting only the distinct ones).

The product of its digits is 100000, while the sum is 36.

The square root of 545515425 is about 23356.2716416812. The cubic root of 545515425 is about 817.0883374722.

The spelling of 545515425 in words is "five hundred forty-five million, five hundred fifteen thousand, four hundred twenty-five".