52072732 has 6 divisors (see below), whose sum is σ = 91127288. Its totient is φ = 26036364.

The previous prime is 52072729. The next prime is 52072753. The reversal of 52072732 is 23727025.

It is a self number, because there is not a number n which added to its sum of digits gives 52072732.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 6509088 + ... + 6509095.

Almost surely, 2^52072732 is an apocalyptic number.

It is an amenable number.

52072732 is a deficient number, since it is larger than the sum of its proper divisors (39054556).

52072732 is a wasteful number, since it uses less digits than its factorization.

52072732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13018187 (or 13018185 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 52072732 is about 7216.1438455729. The cubic root of 52072732 is about 373.4250557655.

Adding to 52072732 its reverse (23727025), we get a palindrome (75799757).

The spelling of 52072732 in words is "fifty-two million, seventy-two thousand, seven hundred thirty-two".