545474250 has 224 divisors, whose sum is σ = 1589816592. Its totient is φ = 139968000.

The previous prime is 545474243. The next prime is 545474329. The reversal of 545474250 is 52474545.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 2537649 + 542936601 = 1593^2 + 23301^2 .

It is a Curzon 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 111 ways as a sum of consecutive naturals, for example, 7472214 + ... + 7472286.

Almost surely, 2^545474250 is an apocalyptic number.

545474250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 545474250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (794908296).

545474250 is an abundant number, since it is smaller than the sum of its proper divisors (1044342342).

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

545474250 is an equidigital number, since it uses as much as digits as its factorization.

545474250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 36.

The square root of 545474250 is about 23355.3901701513. The cubic root of 545474250 is about 817.0677792641.

The spelling of 545474250 in words is "five hundred forty-five million, four hundred seventy-four thousand, two hundred fifty".