52546240 has 56 divisors (see below), whose sum is σ = 129186432. Its totient is φ = 20336640.

The previous prime is 52546217. The next prime is 52546279. The reversal of 52546240 is 4264525.

It is a super-2 number, since 2×52546240² = 5522214676275200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52546199 and 52546208.

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, 7272 + ... + 12568.

Almost surely, 2^52546240 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 52546240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64593216).

52546240 is an abundant number, since it is smaller than the sum of its proper divisors (76640192).

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

52546240 is a wasteful number, since it uses less digits than its factorization.

52546240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5345 (or 5335 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 52546240 is about 7248.8785339527. The cubic root of 52546240 is about 374.5535189939.

The spelling of 52546240 in words is "fifty-two million, five hundred forty-six thousand, two hundred forty".