52920628 has 12 divisors (see below), whose sum is σ = 93233700. Its totient is φ = 26282432.

The previous prime is 52920617. The next prime is 52920629. The reversal of 52920628 is 82602925.

It can be written as a sum of positive squares in 2 ways, for example, as 4088484 + 48832144 = 2022^2 + 6988^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52920593 and 52920602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52920629) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 43801 + ... + 44992.

It is an arithmetic number, because the mean of its divisors is an integer number (7769475).

Almost surely, 2^52920628 is an apocalyptic number.

It is an amenable number.

52920628 is a deficient number, since it is larger than the sum of its proper divisors (40313072).

52920628 is a wasteful number, since it uses less digits than its factorization.

52920628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88946 (or 88944 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 52920628 is about 7274.6565554671. The cubic root of 52920628 is about 375.4409698443.

The spelling of 52920628 in words is "fifty-two million, nine hundred twenty thousand, six hundred twenty-eight".