52505272 has 8 divisors (see below), whose sum is σ = 98447400. Its totient is φ = 26252632.

The previous prime is 52505263. The next prime is 52505311. The reversal of 52505272 is 27250525.

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 52505272.

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, 3281572 + ... + 3281587.

It is an arithmetic number, because the mean of its divisors is an integer number (12305925).

Almost surely, 2^52505272 is an apocalyptic number.

It is an amenable number.

52505272 is a deficient number, since it is larger than the sum of its proper divisors (45942128).

52505272 is a wasteful number, since it uses less digits than its factorization.

52505272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6563165 (or 6563161 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 52505272 is about 7246.0521665249. The cubic root of 52505272 is about 374.4561526986.

Adding to 52505272 its reverse (27250525), we get a palindrome (79755797).

The spelling of 52505272 in words is "fifty-two million, five hundred five thousand, two hundred seventy-two".