53158528 has 32 divisors (see below), whose sum is σ = 107712000. Its totient is φ = 26125056.

The previous prime is 53158519. The next prime is 53158531. The reversal of 53158528 is 82585135.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4033 + ... + 11071.

It is an arithmetic number, because the mean of its divisors is an integer number (3366000).

Almost surely, 2^53158528 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 53158528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53856000).

53158528 is an abundant number, since it is smaller than the sum of its proper divisors (54553472).

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

53158528 is an equidigital number, since it uses as much as digits as its factorization.

53158528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7112 (or 7100 counting only the distinct ones).

The product of its digits is 48000, while the sum is 37.

The square root of 53158528 is about 7290.9895076046. The cubic root of 53158528 is about 376.0027161415.

The spelling of 53158528 in words is "fifty-three million, one hundred fifty-eight thousand, five hundred twenty-eight".