52132740 has 48 divisors (see below), whose sum is σ = 159243840. Its totient is φ = 12638080.

The previous prime is 52132739. The next prime is 52132757. The reversal of 52132740 is 4723125.

It is a self number, because there is not a number n which added to its sum of digits gives 52132740.

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, 38835 + ... + 40154.

It is an arithmetic number, because the mean of its divisors is an integer number (3317580).

Almost surely, 2^52132740 is an apocalyptic number.

It is an amenable number.

52132740 is an abundant number, since it is smaller than the sum of its proper divisors (107111100).

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

52132740 is a wasteful number, since it uses less digits than its factorization.

52132740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79012 (or 79010 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 52132740 is about 7220.3005477612. The cubic root of 52132740 is about 373.5684442379.

Adding to 52132740 its reverse (4723125), we get a palindrome (56855865).

The spelling of 52132740 in words is "fifty-two million, one hundred thirty-two thousand, seven hundred forty".