52415040 has 112 divisors (see below), whose sum is σ = 168981120. Its totient is φ = 13762560.

The previous prime is 52415023. The next prime is 52415089. The reversal of 52415040 is 4051425.

It is a junction number, because it is equal to n+sod(n) for n = 52414998 and 52415016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67776 + ... + 68544.

It is an arithmetic number, because the mean of its divisors is an integer number (1508760).

Almost surely, 2^52415040 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 52415040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84490560).

52415040 is an abundant number, since it is smaller than the sum of its proper divisors (116566080).

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

52415040 is a wasteful number, since it uses less digits than its factorization.

52415040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860 (or 850 counting only the distinct ones).

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

The square root of 52415040 is about 7239.8232022612. The cubic root of 52415040 is about 374.2415247194.

Adding to 52415040 its reverse (4051425), we get a palindrome (56466465).

The spelling of 52415040 in words is "fifty-two million, four hundred fifteen thousand, forty".