53258240 has 96 divisors (see below), whose sum is σ = 146240640. Its totient is φ = 18235392.

The previous prime is 53258237. The next prime is 53258243. The reversal of 53258240 is 4285235.

It is an interprime number because it is at equal distance from previous prime (53258237) and next prime (53258243).

It is not an unprimeable number, because it can be changed into a prime (53258243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71309 + ... + 72051.

It is an arithmetic number, because the mean of its divisors is an integer number (1523340).

Almost surely, 2^53258240 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 53258240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73120320).

53258240 is an abundant number, since it is smaller than the sum of its proper divisors (92982400).

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

53258240 is an equidigital number, since it uses as much as digits as its factorization.

53258240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777 (or 757 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 53258240 is about 7297.8243333202. The cubic root of 53258240 is about 376.2376647428.

The spelling of 53258240 in words is "fifty-three million, two hundred fifty-eight thousand, two hundred forty".