52825840 has 40 divisors (see below), whose sum is σ = 123661728. Its totient is φ = 20985600.

The previous prime is 52825823. The next prime is 52825853. The reversal of 52825840 is 4852825.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 52825796 and 52825805.

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, 9894 + ... + 14266.

Almost surely, 2^52825840 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 52825840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61830864).

52825840 is an abundant number, since it is smaller than the sum of its proper divisors (70835888).

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

52825840 is a wasteful number, since it uses less digits than its factorization.

52825840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4537 (or 4531 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 34.

The square root of 52825840 is about 7268.1386888254. The cubic root of 52825840 is about 375.2166807004.

The spelling of 52825840 in words is "fifty-two million, eight hundred twenty-five thousand, eight hundred forty".