52500240 has 240 divisors, whose sum is σ = 194987520. Its totient is φ = 12579840.

The previous prime is 52500229. The next prime is 52500251. The reversal of 52500240 is 4200525.

It is an interprime number because it is at equal distance from previous prime (52500229) and next prime (52500251).

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 664521 + ... + 664599.

It is an arithmetic number, because the mean of its divisors is an integer number (812448).

Almost surely, 2^52500240 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 52500240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97493760).

52500240 is an abundant number, since it is smaller than the sum of its proper divisors (142487280).

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

52500240 is a wasteful number, since it uses less digits than its factorization.

52500240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 52500240 is about 7245.7049346492. The cubic root of 52500240 is about 374.4441899408. Note that the first 3 decimals are identical.

Adding to 52500240 its reverse (4200525), we get a palindrome (56700765).

The spelling of 52500240 in words is "fifty-two million, five hundred thousand, two hundred forty".