52514240 has 56 divisors (see below), whose sum is σ = 125669040. Its totient is φ = 20901888.

The previous prime is 52514219. The next prime is 52514249. The reversal of 52514240 is 4241525.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52514249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121064 + ... + 121496.

It is an arithmetic number, because the mean of its divisors is an integer number (2244090).

Almost surely, 2^52514240 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 52514240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62834520).

52514240 is an abundant number, since it is smaller than the sum of its proper divisors (73154800).

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

52514240 is a wasteful number, since it uses less digits than its factorization.

52514240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829 (or 819 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 52514240 is about 7246.6709598270. The cubic root of 52514240 is about 374.4774707585.

Adding to 52514240 its reverse (4241525), we get a palindrome (56755765).

The spelling of 52514240 in words is "fifty-two million, five hundred fourteen thousand, two hundred forty".