53203040 has 192 divisors, whose sum is σ = 151683840. Its totient is φ = 17418240.

The previous prime is 53203039. The next prime is 53203049. The reversal of 53203040 is 4030235.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53203049) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1237259 + ... + 1237301.

It is an arithmetic number, because the mean of its divisors is an integer number (790020).

Almost surely, 2^53203040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53203040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75841920).

53203040 is an abundant number, since it is smaller than the sum of its proper divisors (98480800).

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

53203040 is a wasteful number, since it uses less digits than its factorization.

53203040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 53203040 is about 7294.0414037761. The cubic root of 53203040 is about 376.1076347956.

Adding to 53203040 its reverse (4030235), we get a palindrome (57233275).

The spelling of 53203040 in words is "fifty-three million, two hundred three thousand, forty".