57828263 has 4 divisors (see below), whose sum is σ = 57883728. Its totient is φ = 57772800.

The previous prime is 57828227. The next prime is 57828269. The reversal of 57828263 is 36282875.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57828263 - 2¹² = 57824167 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57828263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57828269) 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, 26138 + ... + 28263.

It is an arithmetic number, because the mean of its divisors is an integer number (14470932).

Almost surely, 2^57828263 is an apocalyptic number.

57828263 is a deficient number, since it is larger than the sum of its proper divisors (55465).

57828263 is a wasteful number, since it uses less digits than its factorization.

57828263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55464.

The product of its digits is 161280, while the sum is 41.

The square root of 57828263 is about 7604.4896607202. The cubic root of 57828263 is about 386.7052330571.

The spelling of 57828263 in words is "fifty-seven million, eight hundred twenty-eight thousand, two hundred sixty-three".