52720132 has 6 divisors (see below), whose sum is σ = 92260238. Its totient is φ = 26360064.

The previous prime is 52720123. The next prime is 52720133. The reversal of 52720132 is 23102725.

It can be written as a sum of positive squares in only one way, i.e., 52330756 + 389376 = 7234^2 + 624^2 .

It is not an unprimeable number, because it can be changed into a prime (52720133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6590013 + ... + 6590020.

Almost surely, 2^52720132 is an apocalyptic number.

It is an amenable number.

52720132 is a deficient number, since it is larger than the sum of its proper divisors (39540106).

52720132 is a wasteful number, since it uses less digits than its factorization.

52720132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13180037 (or 13180035 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 52720132 is about 7260.8630341028. The cubic root of 52720132 is about 374.9662357748.

Adding to 52720132 its reverse (23102725), we get a palindrome (75822857).

The spelling of 52720132 in words is "fifty-two million, seven hundred twenty thousand, one hundred thirty-two".