52251864 has 128 divisors (see below), whose sum is σ = 157286400. Its totient is φ = 14152320.

The previous prime is 52251851. The next prime is 52251869. The reversal of 52251864 is 46815225.

52251864 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 not an unprimeable number, because it can be changed into a prime (52251869) by changing a digit.

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, 411369 + ... + 411495.

It is an arithmetic number, because the mean of its divisors is an integer number (1228800).

Almost surely, 2^52251864 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 52251864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78643200).

52251864 is an abundant number, since it is smaller than the sum of its proper divisors (105034536).

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

52251864 is a wasteful number, since it uses less digits than its factorization.

52251864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 249 counting only the distinct ones).

The product of its digits is 19200, while the sum is 33.

The square root of 52251864 is about 7228.5450818266. The cubic root of 52251864 is about 373.8527640672.

The spelling of 52251864 in words is "fifty-two million, two hundred fifty-one thousand, eight hundred sixty-four".