52507340 has 48 divisors (see below), whose sum is σ = 113218560. Its totient is φ = 20448960.

The previous prime is 52507333. The next prime is 52507349. The reversal of 52507340 is 4370525.

It is not an unprimeable number, because it can be changed into a prime (52507349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146081 + ... + 146439.

It is an arithmetic number, because the mean of its divisors is an integer number (2358720).

Almost surely, 2^52507340 is an apocalyptic number.

It is an amenable number.

52507340 is an abundant number, since it is smaller than the sum of its proper divisors (60711220).

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

52507340 is a wasteful number, since it uses less digits than its factorization.

52507340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 52507340 is about 7246.1948635128. The cubic root of 52507340 is about 374.4610688091.

Adding to 52507340 its reverse (4370525), we get a palindrome (56877865).

The spelling of 52507340 in words is "fifty-two million, five hundred seven thousand, three hundred forty".