53251000 has 128 divisors (see below), whose sum is σ = 140175360. Its totient is φ = 18768000.

The previous prime is 53250979. The next prime is 53251013. The reversal of 53251000 is 15235.

53251000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 516949 + ... + 517051.

It is an arithmetic number, because the mean of its divisors is an integer number (1095120).

Almost surely, 2^53251000 is an apocalyptic number.

53251000 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 53251000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70087680).

53251000 is an abundant number, since it is smaller than the sum of its proper divisors (86924360).

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

53251000 is a wasteful number, since it uses less digits than its factorization.

53251000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 53251000 is about 7297.3282782125. The cubic root of 53251000 is about 376.2206152112.

Adding to 53251000 its reverse (15235), we get a palindrome (53266235).

The spelling of 53251000 in words is "fifty-three million, two hundred fifty-one thousand".