52061240 has 64 divisors (see below), whose sum is σ = 146050560.
Its totient is φ = 16225920.
The previous prime is 52061239. The next prime is 52061263. The reversal of 52061240 is 4216025.
It is a happy number.
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, 5372 + ... + 11531.
It is an arithmetic number, because the mean of its divisors is an integer number (2282040).
Almost surely, 252061240 is an apocalyptic number.
It is an amenable number.
52061240 is an abundant number, since it is smaller than the sum of its proper divisors (93989320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
52061240 is a wasteful number, since it uses less digits than its factorization.
52061240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16932 (or 16928 counting only the distinct ones).
The product of its (nonzero) digits is 480, while the sum is 20.
The square root of 52061240 is about 7215.3475314776.
The cubic root of 52061240 is about 373.3975831881.
52061240 divided by its sum of digits (20) gives a palindrome (2603062).
Adding to 52061240 its reverse (4216025), we get a palindrome (56277265).
It can be divided in two parts, 5206 and 1240, that added together give a palindrome (6446).
The spelling of 52061240 in words is "fifty-two million, sixty-one thousand, two hundred forty".