52643000 has 64 divisors (see below), whose sum is σ = 125349120. Its totient is φ = 20688000.

The previous prime is 52642963. The next prime is 52643011. The reversal of 52643000 is 34625.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 60569 + ... + 61431.

It is an arithmetic number, because the mean of its divisors is an integer number (1958580).

Almost surely, 2^52643000 is an apocalyptic number.

52643000 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 52643000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62674560).

52643000 is an abundant number, since it is smaller than the sum of its proper divisors (72706120).

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

52643000 is a wasteful number, since it uses less digits than its factorization.

52643000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945 (or 931 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 52643000 is about 7255.5496001337. The cubic root of 52643000 is about 374.7832821872.

Adding to 52643000 its reverse (34625), we get a palindrome (52677625).

The spelling of 52643000 in words is "fifty-two million, six hundred forty-three thousand".