52125240 has 32 divisors (see below), whose sum is σ = 156376080. Its totient is φ = 13900032.

The previous prime is 52125221. The next prime is 52125251. The reversal of 52125240 is 4252125.

It is a happy number.

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, 217069 + ... + 217308.

Almost surely, 2^52125240 is an apocalyptic number.

It is an amenable number.

52125240 is an abundant number, since it is smaller than the sum of its proper divisors (104250840).

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

52125240 is a wasteful number, since it uses less digits than its factorization.

52125240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434391 (or 434387 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 52125240 is about 7219.7811601184. The cubic root of 52125240 is about 373.5505290871.

Adding to 52125240 its reverse (4252125), we get a palindrome (56377365).

The spelling of 52125240 in words is "fifty-two million, one hundred twenty-five thousand, two hundred forty".