52242520 has 64 divisors (see below), whose sum is σ = 131738400. Its totient is φ = 18478080.

The previous prime is 52242481. The next prime is 52242539. The reversal of 52242520 is 2524225.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 52242491 and 52242500.

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, 14676 + ... + 17884.

Almost surely, 2^52242520 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 52242520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65869200).

52242520 is an abundant number, since it is smaller than the sum of its proper divisors (79495880).

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

52242520 is a wasteful number, since it uses less digits than its factorization.

52242520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3268 (or 3264 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 52242520 is about 7227.8987264626. The cubic root of 52242520 is about 373.8304778545.

Adding to 52242520 its reverse (2524225), we get a palindrome (54766745).

It can be divided in two parts, 5224 and 2520, that added together give a square (7744 = 88²).

The spelling of 52242520 in words is "fifty-two million, two hundred forty-two thousand, five hundred twenty".