52287420 has 48 divisors (see below), whose sum is σ = 147496608. Its totient is φ = 13839360.

The previous prime is 52287383. The next prime is 52287439. The reversal of 52287420 is 2478225.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5040 + ... + 11400.

It is an arithmetic number, because the mean of its divisors is an integer number (3072846).

Almost surely, 2^52287420 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 52287420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73748304).

52287420 is an abundant number, since it is smaller than the sum of its proper divisors (95209188).

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

52287420 is a wasteful number, since it uses less digits than its factorization.

52287420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6510 (or 6508 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 52287420 is about 7231.0040796559. The cubic root of 52287420 is about 373.9375437854.

The spelling of 52287420 in words is "fifty-two million, two hundred eighty-seven thousand, four hundred twenty".