52628720 has 40 divisors (see below), whose sum is σ = 124974144. Its totient is φ = 20602112.

The previous prime is 52628711. The next prime is 52628729. The reversal of 52628720 is 2782625.

It is an interprime number because it is at equal distance from previous prime (52628711) and next prime (52628729).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52628729) 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 7 ways as a sum of consecutive naturals, for example, 3239 + ... + 10758.

Almost surely, 2^52628720 is an apocalyptic number.

It is an amenable number.

52628720 is an abundant number, since it is smaller than the sum of its proper divisors (72345424).

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

52628720 is a wasteful number, since it uses less digits than its factorization.

52628720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14057 (or 14051 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 52628720 is about 7254.5654590747. The cubic root of 52628720 is about 374.7493910763.

The spelling of 52628720 in words is "fifty-two million, six hundred twenty-eight thousand, seven hundred twenty".