53009000 has 128 divisors (see below), whose sum is σ = 139276800. Its totient is φ = 18720000.

The previous prime is 53008987. The next prime is 53009027. The reversal of 53009000 is 90035.

It is a self number, because there is not a number n which added to its sum of digits gives 53009000.

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, 670961 + ... + 671039.

It is an arithmetic number, because the mean of its divisors is an integer number (1088100).

Almost surely, 2^53009000 is an apocalyptic number.

53009000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53009000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69638400).

53009000 is an abundant number, since it is smaller than the sum of its proper divisors (86267800).

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

53009000 is a wasteful number, since it uses less digits than its factorization.

53009000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 17.

The square root of 53009000 is about 7280.7279855795. The cubic root of 53009000 is about 375.6498362135.

Adding to 53009000 its reverse (90035), we get a palindrome (53099035).

The spelling of 53009000 in words is "fifty-three million, nine thousand".