52302540 has 96 divisors (see below), whose sum is σ = 158505984. Its totient is φ = 12835840.

The previous prime is 52302539. The next prime is 52302581. The reversal of 52302540 is 4520325.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47395 + ... + 48485.

It is an arithmetic number, because the mean of its divisors is an integer number (1651104).

Almost surely, 2^52302540 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 52302540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79252992).

52302540 is an abundant number, since it is smaller than the sum of its proper divisors (106203444).

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

52302540 is a wasteful number, since it uses less digits than its factorization.

52302540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167 (or 1165 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 52302540 is about 7232.0495020430. The cubic root of 52302540 is about 373.9735842630.

Adding to 52302540 its reverse (4520325), we get a palindrome (56822865).

The spelling of 52302540 in words is "fifty-two million, three hundred two thousand, five hundred forty".