525303450 has 288 divisors, whose sum is σ = 1736317440. Its totient is φ = 111196800.

The previous prime is 525303433. The next prime is 525303487. The reversal of 525303450 is 54303525.

525303450 is a `hidden beast` number, since 52 + 530 + 34 + 50 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4009885 + ... + 4010015.

It is an arithmetic number, because the mean of its divisors is an integer number (6028880).

Almost surely, 2^525303450 is an apocalyptic number.

525303450 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 525303450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (868158720).

525303450 is an abundant number, since it is smaller than the sum of its proper divisors (1211013990).

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

525303450 is a wasteful number, since it uses less digits than its factorization.

525303450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 525303450 is about 22919.4993400816. The cubic root of 525303450 is about 806.8697200359.

Adding to 525303450 its reverse (54303525), we get a palindrome (579606975).

The spelling of 525303450 in words is "five hundred twenty-five million, three hundred three thousand, four hundred fifty".