53209590 has 64 divisors (see below), whose sum is σ = 148953600. Its totient is φ = 12159840.

The previous prime is 53209573. The next prime is 53209613. The reversal of 53209590 is 9590235.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7705 + ... + 12875.

It is an arithmetic number, because the mean of its divisors is an integer number (2327400).

Almost surely, 2^53209590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53209590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74476800).

53209590 is an abundant number, since it is smaller than the sum of its proper divisors (95744010).

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

53209590 is a wasteful number, since it uses less digits than its factorization.

53209590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5202 (or 5188 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 33.

The square root of 53209590 is about 7294.4903865863. The cubic root of 53209590 is about 376.1230687753.

The spelling of 53209590 in words is "fifty-three million, two hundred nine thousand, five hundred ninety".