52459840 has 56 divisors (see below), whose sum is σ = 129250440. Its totient is φ = 20256768.

The previous prime is 52459837. The next prime is 52459879. The reversal of 52459840 is 4895425.

It can be written as a sum of positive squares in 4 ways, for example, as 11397376 + 41062464 = 3376^2 + 6408^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 52459840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6454 + ... + 12106.

Almost surely, 2^52459840 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 52459840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64625220).

52459840 is an abundant number, since it is smaller than the sum of its proper divisors (76790600).

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

52459840 is a wasteful number, since it uses less digits than its factorization.

52459840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5699 (or 5689 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 52459840 is about 7242.9165396268. The cubic root of 52459840 is about 374.3481178260.

The spelling of 52459840 in words is "fifty-two million, four hundred fifty-nine thousand, eight hundred forty".