243525030 has 64 divisors (see below), whose sum is σ = 677403648. Its totient is φ = 54875520.

The previous prime is 243525019. The next prime is 243525041. The reversal of 243525030 is 30525342.

It is an interprime number because it is at equal distance from previous prime (243525019) and next prime (243525041).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6744 + ... + 23076.

It is an arithmetic number, because the mean of its divisors is an integer number (10584432).

Almost surely, 2^243525030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243525030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338701824).

243525030 is an abundant number, since it is smaller than the sum of its proper divisors (433878618).

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

243525030 is a wasteful number, since it uses less digits than its factorization.

243525030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16421.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 243525030 is about 15605.2885266502. The cubic root of 243525030 is about 624.4742501300.

The spelling of 243525030 in words is "two hundred forty-three million, five hundred twenty-five thousand, thirty".