57556628 has 12 divisors (see below), whose sum is σ = 106649172. Its totient is φ = 27085440.

The previous prime is 57556621. The next prime is 57556637. The reversal of 57556628 is 82665575.

57556628 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 50438404 + 7118224 = 7102^2 + 2668^2 .

57556628 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57556621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423143 + ... + 423278.

It is an arithmetic number, because the mean of its divisors is an integer number (8887431).

Almost surely, 2^57556628 is an apocalyptic number.

It is an amenable number.

57556628 is a deficient number, since it is larger than the sum of its proper divisors (49092544).

57556628 is a wasteful number, since it uses less digits than its factorization.

57556628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846442 (or 846440 counting only the distinct ones).

The product of its digits is 504000, while the sum is 44.

The square root of 57556628 is about 7586.6084649203. The cubic root of 57556628 is about 386.0987961560.

The spelling of 57556628 in words is "fifty-seven million, five hundred fifty-six thousand, six hundred twenty-eight".