52390260 has 192 divisors, whose sum is σ = 186278400. Its totient is φ = 12109824.

The previous prime is 52390259. The next prime is 52390271. The reversal of 52390260 is 6209325.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 119121 + ... + 119559.

It is an arithmetic number, because the mean of its divisors is an integer number (970200).

Almost surely, 2^52390260 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 52390260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93139200).

52390260 is an abundant number, since it is smaller than the sum of its proper divisors (133888140).

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

52390260 is a wasteful number, since it uses less digits than its factorization.

52390260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 479 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 52390260 is about 7238.1116321869. Note that the first 3 decimals coincide. The cubic root of 52390260 is about 374.1825393163.

Adding to 52390260 its reverse (6209325), we get a palindrome (58599585).

It can be divided in two parts, 52390 and 260, that added together give a triangular number (52650 = T₃₂₄).

The spelling of 52390260 in words is "fifty-two million, three hundred ninety thousand, two hundred sixty".