52281372 has 48 divisors (see below), whose sum is σ = 143321472. Its totient is φ = 14623680.

The previous prime is 52281367. The next prime is 52281389. The reversal of 52281372 is 27318225.

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 in 15 ways as a sum of consecutive naturals, for example, 13518 + ... + 16949.

It is an arithmetic number, because the mean of its divisors is an integer number (2985864).

Almost surely, 2^52281372 is an apocalyptic number.

52281372 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

52281372 is an abundant number, since it is smaller than the sum of its proper divisors (91040100).

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

52281372 is a wasteful number, since it uses less digits than its factorization.

52281372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30498 (or 30496 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 52281372 is about 7230.5858683789. The cubic root of 52281372 is about 373.9231256489.

Adding to 52281372 its reverse (27318225), we get a palindrome (79599597).

The spelling of 52281372 in words is "fifty-two million, two hundred eighty-one thousand, three hundred seventy-two".